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Introduction (v1)

The Sezzle API v1 is intended for merchants interested in accepting Sezzle as a payment option. The Sezzle Integration Flow illustrates the user payment interaction.

Sezzle supports individually authorized transactions for a single purchase of goods or services.

Sezzle offers integrations with some of the most popular eCommerce platforms.
Please choose your platform to see the relevant documentation:
1. 3DCart
2. BigCommerce
3. Bold Cashier
4. BuyItLive
5. CommentSold
6. Magento 1
7. Magento 2
8. NopCommerce
9. Shopify
10. WooCommerce
11. Zoey

Field or header names in bold case followed by an asterisk are required. (For example, this_is_required* is a required field whereas this_is_optional is not.)

If you have any questions regarding our API, please reach out to our team by email at dev@sezzle.com.

Integration Flow

Overview of Integration Flow

payment flow

Explanation of payment flow

  1. Merchant calls /v1/checkouts to send cart data to Sezzle.
  2. Sezzle returns URL to redirect consumer to make payment at Sezzle checkout.
  3. Merchant redirects the consumer to Sezzle.
  4. When the consumer completes the Sezzle checkout flow, they are redirected back to merchant’s website.
  5. Alternatively, on approval, the consumer is redirected from Sezzle checkout to merchant’s website and merchant captures the order by calling /v1/complete.

Authentication

Obtain Authentication Token

To authorize, use the following format:

Request Body

{
    "public_key": "myPublicKey",
    "private_key": "myPrivateKey"
}

Make sure to replace keys with your API keys from your Merchant Dashboard.

Response Body

{
    "token": "authToken",
    "expiration_date": "2017-01-01T01:30:25.388940303Z",
    "merchant_uuid": "merchant1234567890"
}

POST https://gateway.sezzle.com/v1/authentication

Sezzle uses scoped API keys to allow access to the API. You can find/generate these keys on your merchant dashboard once you have been approved by Sezzle.

Once you have a valid token, it must be used as a Header for subsequent requests to our API, using the format below.

Authorization: Bearer authToken

Configuration

Setting your configuration

Request Body

{
    "webhook_url": "https://yourdomain.com/webhook"
}

There is no response body for this request. If successful, we return an HTTP 200 Status OK.

POST https://gateway.sezzle.com/v1/configuration

At this time, Sezzle only allows configuration of the URL that we send our webhooks to.

Parameter Type Description
webhook_url* string A URL for us to send our webhooks to.

Checkouts

Create a Checkout

Request Body

{
    "amount_in_cents": 12999,
    "currency_code": "USD",
    "order_reference_id": "Ref123456789",
    "order_description": "Order #1800",
    "checkout_cancel_url": "https://sezzle.com/cart",
    "checkout_complete_url": "https://sezzle.com/complete",
    "customer_details":
    {
        "first_name": "John",
        "last_name": "Doe",
        "email": "john.doe@sezzle.com",
        "phone": "5555045294"
    },
    "billing_address": {
        "name": "John Doe",
        "street": "123 W Lake St",
        "street2": "Unit 104",
        "city": "Minneapolis",
        "state": "MN",
        "postal_code": "55408",
        "country_code": "US",
        "phone_number": "5555045294"
    },
    "shipping_address": {
        "name": "John Doe",
        "street": "123 W Lake St",
        "street2": "Unit 104",
        "city": "Minneapolis",
        "state": "MN",
        "postal_code": "55408",
        "country_code": "US",
        "phone_number": "5555045294"
    },
    "requires_shipping_info": false,
    "items": [
        {
          "name": "widget",
          "sku": "sku123456",
          "quantity": 1,
          "price": {
              "amount_in_cents": 1000,
              "currency": "USD"
          }
        }
    ],
    "discounts": [
        {
          "name": "20% off",
          "amount": {
              "amount_in_cents": 1000,
              "currency": "USD"
          }
        }
    ],
    "tax_amount": {
        "amount_in_cents": 1000,
        "currency": "USD"
    },
    "shipping_amount": {
        "amount_in_cents": 1000,
        "currency": "USD"
    },
    "metadata": {
      "location_id": "123",
      "store_name": "Downtown Minneapolis",
      "store_manager": "Jane Doe"
    }
}

Response Body

{
    "checkout_url": "https://checkout.sezzle.com/?id=<checkout_id>",
    "checkout_uuid": "<checkout_id>"
}

HTTP Request

POST https://gateway.sezzle.com/v1/checkouts

This checkout endpoint creates a checkout in our system, and returns the URL that you should redirect the user to. We suggest you provide as much optional information about the user as you have available, since this will speed up our checkout process and increase conversion.

Sezzle is able to handle the entire checkout process after a Checkout has been provided. However, if your flow requires that the user confirm their checkout on your site after being approved by Sezzle, you may include the merchant_completes parameter with the checkout request. In this flow, Sezzle will not complete the order unless you make a checkout completion request.

Checkout Object

Parameter Type Description
amount_in_cents* int The amount of the checkout. Must be at least 100
currency_code* string The currency code of the checkout
order_reference_id* string A reference to this checkout in your systems
order_description* string A user-facing description for this checkout
checkout_cancel_url* string The URL we should redirect the customer to in the case of a cancellation
checkout_complete_url* string The URL we should redirect to in the case of a successful checkout
checkout_expiration string Checkout expiration in ISO 8601 date/time format
customer_details object The customer in the checkout
billing_address object The billing address of the checkout
shipping_address object The shipping address of the checkout
requires_shipping_info boolean Flag to indicate if you would like us to collect shipping information for this checkout from the customer. If omitted, will default to false
items array The items being purchased
discounts array The discounts applied. Must be included in the total
tax_amount object The taxes applied to this checkout. Must be included in the total
shipping_amount object The shipping fees applied to this checkout. Must be included in the total
merchant_completes boolean Flag to determine whether this checkout must be completed by the merchant. If omitted, will default to false
metadata object Object for any custom data you want to submit with the checkout. You are not limited to the key-value pairs shown in the example, and you may use any key-value pairs you like

Customer Details Object

Parameter Type Description
first_name string The user’s first name
last_name string The user’s last name
email string The user’s email address
phone string The user’s phone number

Address Object

This is used for both billing and shipping

Parameter Type Description
name string The name on the address
street string The street and number of the address
street2 string The apt or unit
city string The city
state string The 2 character state code
postal_code string The postal delivery code
country_code string The 2 character country code
phone_number string The phone number at the delivery location

Item Object

Parameter Type Description
name string The name of the item
sku string The sku identifier
quantity int The quantity purchased
price object The price object

Tax Amount Object

Parameter Type Description
tax_amount object A price object

Shipping Amount Object

Parameter Type Description
shipping_amount object A price object

Discount Object

Parameter Type Description
name string The description of the discount
amount object A price object

Price Object

Parameter Type Description
amount_in_cents int The amount of the item in pennies
currency string The 3 character currency code as defined by ISO 4217

Metadata Object

Use the metadata object for any additional information you would like to attach to the checkout. All values must be strings.

Parameter Type Description
some_field_name string Custom metadata field
some_other_field_name string Custom metadata field

Complete a Checkout (optional)

Success response

Echos the given Checkout.

Rejection response

{
    "status": 409,
    "id": "checkout_expired",
    "message": "checkout not completed within time limit"
}

POST https://gateway.sezzle.com/v1/checkouts/{order_reference_id}/complete

If you pass true to merchant_completes in our Create Checkout flow, then you must call our Complete Checkout endpoint.

For some checkouts, a merchant may need to have the user return to their site for additional steps before completing the purchase. If this is the case, the order completion endpoint is used to complete the Checkout with Sezzle. From the time the user is redirected back to the Merchant’s site, you must make the request to complete the checkout within 30 minutes, or the checkout will be cancelled by Sezzle. If the checkout has expired, we will return the rejection response on the right, with a Status 409.

There are two non-error responses expected. Either an HTTP 200, which echos all accepted fields given at Checkout creation, or a rejection message.

Orders

Order Details

Order Details Response Body

{
    "created_at": "2018-11-02T20:09:59Z",
    "captured_at": "2018-11-02T20:18:50Z",
    "capture_expiration": "2018-11-02T20:48:45Z",
    "description": "Description of order",
    "amount_in_cents": 20000,
    "usd_amount_in_cents": 20000,
    "customer_amount_in_cents": 20000,
    "currency_code": "USD",
    "customer_currency_code": "USD",
    "reference_id": "Ref123456789",
    "customer": {
        "first_name": "John",
        "last_name": "Doe",
        "email": "john.doe@sezzle.com",
        "phone": "5555045294"
    },
    "shipping_address": {
        "name": "John Doe",
        "phone_number": "5555045294",
        "street": "123 W Lake St",
        "street2": "Unit 104",
        "city": "Minneapolis",
        "state": "MN",
        "postal_code": "55408",
        "country_code": "US"
    },
    "billing_address": {
        "name": "John Doe",
        "phone_number": "5555045294",
        "street": "123 W Lake St",
        "street2": "Unit 104",
        "city": "Minneapolis",
        "state": "MN",
        "postal_code": "55408",
        "country_code": "US"
    },
    "refunds": [
      {
        "amount": {
          "amount_in_cents": 10000,
          "currency": "USD"
        },
        "created_at": "2018-11-02T20:09:59Z",
        "is_full_refund": false,
        "order_reference_id": "Ref123456789",
        "refund_id": "52b2O9Lv-8",
        "refund_reason": "broken"
      }
    ],
    "metadata": {
      "location_id": "123",
      "store_name": "Downtown Minneapolis",
      "store_manager": "Jane Doe"
    },
    "items": [
        {
          "name": "widget",
          "sku": "sku123456",
          "quantity": 1,
          "price": {
              "amount_in_cents": 1000,
              "currency": "USD"
          }
        }
    ]
}

GET https://gateway.sezzle.com/v1/orders/{order_reference_id}

Once an order is created, you can retrieve the details of the order using this endpoint.

Optional Query Parameter(s)

Parameter Type Values Description
include-shipping-info string true or false If your checkout post data required us to collect shipping information from the customer, then you can request that information alongside the order details.

Order Refunds

Refund Request Body

{
    "refund_id": "41a2O9Lv-7",
    "amount": {
        "amount_in_cents": 500,
        "currency": "USD"
    },
    "refund_reason": "Item returned by user"
}

POST https://gateway.sezzle.com/v1/orders/{order_reference_id}/refund

Sezzle allows refunds for orders either through our Merchant Dashboard or through the API. If the refund is processed through the dashboard, a webhook will be sent to your system. In either case, Sezzle allows for either partial or complete refunds. Refund amounts are relative to the order total, not the amount that has been paid by the shopper.

Refund Request

Parameter Type Description
amount* object A price object that defines the amount to be refunded. Amount may not be 0, negative, or exceed the total order amount. Currency must either be the order’s currency or the customer’s paying currency. This field is optional if the is_full_refund parameter is true.
refund_id string UUID for the Refund. Must be unique to a Merchant.
refund_reason string A reason for the refund.
is_full_refund boolean Overrides amount. If true, the order will be fully refunded. If omitted, will default to false

Reporting

Settlement Reports

These endpoints allow you to view a list of payout summaries or a detailed report of an individual payout.

Settlement Summaries Response Body

[
    {
        "uuid": "b7916fbe-f30a-4435-b411-124634287a8ca",
        "payout_currency": "USD",
        "payout_date": "2019-12-09T15:52:33Z",
        "net_settlement_amount": 9370,
        "forex_fees": 0,
        "status": "Complete"
    },
    {
        "uuid": "c51343hba-d54b-5641-e341-15235523b3at",
        "payout_currency": "USD",
        "payout_date": "2019-12-10T15:52:33Z",
        "net_settlement_amount": 23470,
        "forex_fees": 0,
        "status": "Complete"
    }
]

Settlement Summaries Request

GET https://gateway.sezzle.com/v1/settlements/summaries

Query Parameter Description
start-date* The start date for the report. Must be in yyyy-mm-dd format.
end-date The end date for the report. Must be in yyyy-mm-dd format. If omitted, will default to the current date.
offset The offset for the report.
currency-code The ISO-4217 currency code of the account. If omitted, will default to USD.

Settlement Details Response

total_order_amount,total_refund_amount,total_fee_amount,total_returned_fee_amount,total_chargeback_amount,total_chargeback_reversal_amount,total_interest_transfer_amount,total_correction_amount,total_referral_revenue_transfer_amount,total_bank_account_withdrawals,total_bank_account_withdrawal_reversals,forex_fees,net_settlement_amount,payment_uuid,settlement_currency,payout_date,payout_status
703.20,-5.00,-43.80,.30,0.00,0.00,-4.30,1.71,10.00,100.00,-100.00,0.00,693.61,a5c13qt1-4126-41d3-2fq8-9ca431f51431,USD,2019-11-02 00:05:00 +0000 UTC,Complete
type,order_capture_date,order_created_at,event_date,order_uuid,customer_order_id,external_reference_id,amount,posting_currency,type_code,chargeback_code,sezzle_order_id
ORDER,2019-11-01T19:09:50Z,2019-11-01T19:09:50Z,2019-10-22T19:09:50Z,bm99f-31vu1-kg00e-rae1g,1,12345,500.00,USD,001,,66d78e86-fd96-4266-9217-b769c102a0a0
ORDER,2019-11-01T19:09:50Z,2019-11-01T19:09:50Z,2019-10-22T19:09:50Z,va13d-474s9-3000e-nungg,13,12346,200.00,USD,001,,5e0d4886-8c3d-4d4e-901a-2046a06c1e0f
ORDER,2019-11-01T20:00:01Z,2019-11-01T00:00:01Z,2019-11-01T00:00:01Z,as41g-4v4s9-3000e-nunh0,1,12347,1.40,USD,001,,a2c1a142-96ad-48c9-93d2-1acaaee9f073
ORDER,2019-11-01T20:00:01Z,2019-11-01T20:00:01Z,2019-11-01T20:00:01Z,as62l-5ptqs-9g00e-pvk10,2,12348,1.80,USD,001,,3f62dcba-f5a4-41be-ad8f-53e938b5f310
FEE,2019-11-01T19:09:50Z,2019-11-01T19:09:50Z,2019-11-01T19:09:50Z,bm99f-31vu1-kg00e-rae1g,1,12345,-30.00,USD,003,,66d78e86-fd96-4266-9217-b769c102a0a0
FEE,2019-11-01T19:09:50Z,2019-11-01T19:09:50Z,2019-11-01T19:09:50Z,va13d-474s9-3000e-nungg,13,12346,-12.00,USD,003,,5e0d4886-8c3d-4d4e-901a-2046a06c1e0f
FEE,2019-11-01T20:00:01Z,2019-11-01T00:00:01Z,2019-11-01T20:00:01Z,as41g-4v4s9-3000e-nunh0,1,12347,-1.20,USD,003,,a2c1a142-96ad-48c9-93d2-1acaaee9f073
FEE,2019-11-01T20:00:01Z,2019-11-01T20:00:01Z,2019-11-01T20:00:01Z,as62l-5ptqs-9g00e-pvk10,2,12348,-0.60,USD,003,,3f62dcba-f5a4-41be-ad8f-53e938b5f310
REFUND,2019-10-22T19:09:50Z,2019-10-22T19:09:50Z,2019-11-01T19:09:50Z,bm5rm-vg2js-1tsky-c2dsky,8,12344,5.00,USD,002,,e4194956-de70-4958-9da4-6c05f276fdab
RETURNED_FEE,2019-10-22T19:09:50Z,2019-10-22T19:09:50Z,2019-11-01T19:09:50Z,bm5rm-vg2js-1tsky-c2dsky,7,12344,.30,USD,004,,e4194956-de70-4958-9da4-6c05f276fdab
CORRECTION,,,2019-11-01T17:00:01Z,,,,-1.29,,007,
CORRECTION,,,2019-11-01T17:00:01Z,,,,3.00,,007,
INTEREST_TRANSFER,,,2019-11-01T18:00:01Z,,,,-4.30,,008,
REFERRAL_REVENUE_TRANSFER,,,2019-11-01T15:00:01Z,,,,10.00,,009,
BANK_ACCOUNT_WITHDRAWAL,,,2019-11-02T00:05:00Z,,,,100.00,,010,
BANK_ACCOUNT_WITHDRAWAL_REVERSAL,,,2019-11-02T00:05:00Z,,,,-100.00,,011,

Settlement Details Request

GET https://gateway.sezzle.com/v1/settlements/details/{payout_uuid}

Query Parameter Description
metadata An optional comma-separated list of metadata keys. To add a metadata key as a column to the report line items, include the key in this list. When applicable, the value of the metadata key will be added to the line item. If no line items contain the metadata key, the key will not be added as a column.

The settlement details response contains two sections. The first two rows are a summary of the payout. The remaining rows contain the individual line items that contributed to the payout.

Summary column definitions:

Column Header Description
Total order amount The sum of all orders on this payout.
Total refund amount The sum of all refunds on this payout.
Total fee amount The sum of all fees on this payout.
Total returned fee amount The sum of all returned fees on this payout.
Total chargeback amount The sum of all chargebacks on this payout.
Total chargeback reversal amount The sum of all chargeback reversals on this payout.
Total interest transfer amount The sum of all interest transfers on this payout. If you are not participating in the interest program, this field will be omitted.
Total correction amount The sum of all corrections on this payout.
Total referral revenue transfer amount The sum of all referral revenue transfers on this payout.
Total bank account withdrawal amount The sum of all bank account withdrawals.
Total bank account withdrawal reversal amount The sum of all bank account withdrawal reversals, which reflect a bank account withdrawal that has failed.
Forex fees The cost of foreign exchange fees associated with this payout.
Net settlement amount Net amount of settlement.
Payment uuid The UUID for this payout.
Settlement currency The currency in which this payout was sent.
Payout date The date this payout was sent.
Payout status The current status of this payout.

Line item column definitions:

Column Header Description
Type Describes the type of event (Order, Fee, Refund, etc.).
Order capture date The date at which the order was captured. This field is empty if the order has not yet been captured.
Order created at The date at which the order was created.
Event date The date at which the event took place.
Order uuid The uuid associated with the order.
Customer order id The customer’s order number.
External reference id The external reference ID submitted with the order.
Amount The amount of the event.
Posting currency The customer’s currency code.
Type code A numeric code that corresponds with the Type field.
Chargeback code A numeric code that corresponds with the type of chargeback submitted.
Sezzle order ID The internal ID Sezzle has assigned to this order

Interest Account Reports

Sezzle gives merchants the option to enroll in an interest account program. If you are enrolled in the interest account program, you can use these endpoints to get the current balance and activity on the interest account. Fractions of cents are tracked to properly calculate daily interest accrual even if the interest balance is low.

Interest Account Balance Response Body

{
  "interest_balance": 5183.4624
}

Interest Account Balance Request

GET https://gateway.sezzle.com/v1/interest/balance

Query Parameter Description
currency-code The ISO-4217 currency code of the interest account. If omitted, will default to USD.

Interest Account Activity Response Body

type,event_date,interest_account_change_amount,interest_account_balance_after_change
INTEREST_PAYOUT,2019-12-21T19:10:00Z,122.8718,5101.4676 
INTEREST_WITHDRAWAL,2019-12-21T19:20:00Z,-26.1000,5075.3676 
INTEREST_ACCRUAL,2019-12-21T19:15:00Z,1.0702,5182.3922
INTEREST_ACCRUAL,2019-12-22T19:15:00Z,1.0702,5183.4624

Interest Account Activity Request

GET https://gateway.sezzle.com/v1/interest/activity

Query Parameter Description
start-date* The start date for the report. Must be in yyyy-mm-dd format.
end-date The end date for the report. Must be in yyyy-mm-dd format. If omitted, will default to the current date.
offset The offset for the report.
currency-code The ISO-4217 currency code of the interest account. If omitted, will default to USD.

Webhooks

Order Webhooks

Webhook

{
    "time": "2017-10-19T00:33:10.548372055Z",
    "uuid": "02c5a2a0-8394-4b45-80b3-52d40c494322",
    "type": "order_update",
    "event": "order_complete",
    "object_uuid": "Ref123456789",
    "refund_id": "szl-a0293Pn-3948-80b3-ao34JAia39zQ",
    "refund_amount": {
        "amount_in_cents": 500,
        "currency": "USD"
    }
}

Because the majority of a consumer’s checkout process happens on Sezzle’s pages, our API uses webhooks to communicate information about checkout updates, completions, or refunds to your system.

We expect any response in the 200 range on submitting webhooks.

Order Webhook Object

Parameter Type Description
time string The time (UTC) at which the Webhook was generated.
uuid string A unique identifier for the webhook.
type string The high-level category. For example, order_update
event string The specific action. For example, order_complete
object_uuid string The ID for the Checkout/Order.
refund_id string optional Unique ID for a refund. Included if the webhook event is order_refund.
refund_amount object optional Price object. Included if the webhook event is order_refund.

Order Update Events/Types

Type Event Description
order_update order_complete The checkout was completed successfully
order_update order_refund The order was refunded from the Sezzle Merchant Dashboard

Errors

Error Details

Response Error Body

{
    "status": 400,
    "id": "error_id",
    "message": "Descriptive message"
}

Unless otherwise specified in our documentation, Sezzle returns a standard API error object.

We attempt to keep these errors as consistent as possible, and will announce any changes in advance if they are required.

Error Object

Parameter Type Description
Status int Matches the HTTP Status code of the response
ID string A programmatic identifier for the error. These rarely (if at all) change.
Message string A human-friendly string. These may change, and are intended to assist in debugging rather than program logic.

Javascript SDK

The Javascript SDK is documented in the latest API v2 documentation. It is supported for users of the v1 API using the same loadable page script.

SezzleJS

Purpose

SezzleJS serves to load our sales widgets to web pages. The widgets will not show unless a config is provided before the script is loaded. The repository for this project can be found at https://github.com/sezzle/sezzle-js.

View our latest documentation for configuring widgets.

Testing

While you are working on the integration, you should test it before going live. Please use this section for information on testing.

Sandbox

API Endpoint https://sandbox.gateway.sezzle.com/v1
Sandbox Dashboard https://sandbox.dashboard.sezzle.com/merchant

Test Data

You can use the following test data to test your integration

Bank

Bank Test Bank
Username demo
Password go

Card

Card Number 4242424242424242
CVV/CVC any (3 numbers)
Expiration Date any
Name any
Address any

Phone and other information

  1. Please use any valid phone number.
  2. The expected OTP is 123123.
  3. Personal information does not need to be real.

Open API

The OpenAPI Specification (OAS) defines a standard, language-agnostic interface to RESTful APIs which allows both humans and computers to discover and understand the capabilities of the service without access to source code, documentation, or through network traffic inspection.

Specification

Download the Sezzle OpenAPI Specification for Sandbox or Production.

Client Generator

The Sezzle OpenAPI Specification can be imported into the Swagger Editor to easily generate a Sezzle client in a variety of programming languages. Generate a Sezzle client for Sandbox or Production.

Platform Integrations

3DCart

This guide describes how to integrate Sezzle into your 3DCart website so that you can provide Sezzle as a payment option for your customers. After integrating Sezzle, your 3DCart site will:

  1. Offer Sezzle as a payment option on the checkout page.
  2. Refund Sezzle payments from your 3DCart order management system.
  3. Display Sezzle promotional messaging.
  4. Authorize and capture payments.

Integration Steps Overview

  1. Install and configure the Sezzle 3DCart App
  2. Test your integration
  3. (Optional) Sandbox Testing

Before You Begin

  1. You should have a Sezzle merchant account.
    • Please visit our signup page if you don’t have an account.
  2. Make sure you have the following Sezzle details handy.
  3. Familiarize yourself with the transaction flow when buying with Sezzle.

Install the Sezzle 3DCart Extension

  1. Log in to your website’s 3DCart admin.
  2. Get the app here.
  3. Copy+paste your Store URL into the input area, then click Proceed. application_authorization
  4. Check the PCI Compliance box, then click Acknowledge and Authorize the App to start the installation.

Admin Configuration

  1. In your 3DCart admin, go to Settings > Payment.
  2. Click Select Payment Methods.
    select_payment_methods
  3. Turn the Sezzle switch to On.
  4. Copy your Public Key from your Sezzle Merchant Dashboard, and paste it into the corresponding field in the Sezzle configuration page of your 3DCart admin.
  5. Next to Private Key, click Change. Then, copy your Private Key from your Sezzle Merchant Dashboard, and paste it into the corresponding field in the Sezzle configuration page of your 3DCart admin.
  6. Click Save.
    sezzle_payment_config
  7. To restrict Sezzle usage by country, click the Exclude List hyperlink under the Sezzle switch.
  8. Click Add Location.
  9. Select the desired country, then click Add.
    exclude_list
  10. Installation is complete.

3DCart Sandbox Testing

  1. In the Sezzle configuration page of your 3DCart admin, enter the Sandbox API Keys from your Sezzle Merchant Sandbox Dashboard and check the Test Mode checkbox, then save the configuration. Make sure you are doing this on your dev/staging website.
  2. On your website, add an item to the cart, then proceed to checkout and select Sezzle as the payment method.
  3. Click Place Order and you should be redirected to the Sezzle checkout page. If prompted, sign in. checkout
  4. Enter the payment details using test data, then click Complete Order.
  5. After the payment is completed on Sezzle, you should be redirected back to your website and see a successful payment page.
  6. Sandbox testing is complete. You can log in to your Sezzle Merchant Sandbox Dashboard to see the test order you just placed.

3DCart Live Checkout

  1. In the Sezzle configuration page of your 3DCart admin, enter the API Keys from your Sezzle Merchant Dashboard and uncheck the Test Mode checkbox, then save the configuration.
  2. On your website, add an item to your cart, then proceed to Checkout and select Sezzle as the payment method.
  3. Click Place Order. checkout
  4. If you are redirected to the Sezzle checkout page, your integration is complete. Congratulations! sezzle checkout
  5. Warning Don’t complete the payment. Your checkout is now live, so you will be charged if you complete.

Troubleshooting

If testing was unsuccessful, review the following:

Manual Theme Integration

If the 3DCart app fails to maintain the widget script on the product pages, or to add the script manually for additional pages, complete the following steps:

  1. From your 3DCart admin, go to Settings > Design > Themes & Styles.
  2. In your Current Theme, click the button labeled More then select Edit Template(HTML).
  3. Find the copy of your theme under Go to Folder.
  4. Click the gear icon next to the product_items.html file, then click Edit.
  5. When the dashboard asks if you want to edit your theme files, click the Edit Theme Files button.
  6. In the Source Code text area, copy+paste the script at the very beginning of the file.
  7. Click Save.

The script to be inserted into your webpage is as follows:

Template: <script src="https://widget.sezzle.com/v1/javascript/price-widget?uuid={sezzle_merchant_uuid}"></script>

Note: Update {sezzle_merchant_uuid} in the above script template to reflect your site’s Merchant ID (removing the curly brackets), which can be found in the Sezzle Merchant Dashboard.

Example: <script src="https://widget.sezzle.com/v1/javascript/price-widget?uuid=12a34bc5-6de7-890f-g123-4hi5678jk901"></script>

Instructions may vary slightly depending on your active plug-ins. For assistance with widget configuration, click Request Addition of Widgets in the widget step of your Sezzle Merchant Dashboard Setup Checklist.

Uninstall Steps

  1. Go to Settings > Payment.
  2. Click Select Payment Methods.
  3. Under the Sezzle App, click the gear icon then click Delete.

BigCommerce

This guide describes how to integrate Sezzle into your BigCommerce website so that you can provide Sezzle as a payment option for your customers. After integrating Sezzle, your BigCommerce site will:

  1. Offer Sezzle as a payment option on the checkout page.
  2. Refund Sezzle payments from your BigCommerce order management system.
  3. Display Sezzle promotional messaging.
  4. Authorize and capture payments.

This integration is only available with BigCommerce’s Optimized One Page Checkout.

Integration Steps Overview

  1. Install and configure the Sezzle BigCommerce App
  2. Test your integration
  3. (Optional) Sandbox Testing

Before You Begin

  1. You should have a Sezzle merchant account.
    • Please visit our signup page if you don’t have an account.
  2. Make sure you have the following Sezzle details handy.
  3. Familiarize yourself with the transaction flow when buying with Sezzle.

Install the Sezzle BigCommerce Extension

  1. Log in to your website’s BigCommerce store admin page.
  2. In the left sidebar, click Apps > Marketplace.
  3. Click BigCommerce.com/Apps. bigcommerce_apps
  4. Search for Sezzle. search_sezzle
  5. Click Sezzle, then click Get This App. sezzle_app_bigcommerce_marketplace
  6. Click Install. sezzle_app_install_step1
  7. Check the PCI Compliance box, then click Confirm to start the installation. sezzle_app_install_step2

Admin Configuration

  1. Go to Store Setup > Payments.
    payment_methods
  2. Choose one unused Offline Payment Methods and click Set up.
    offline-payment_methods
  3. Set the Display Name as Sezzle.
  4. Select from the Available Countries list to restrict Sezzle based on country, if desired.
  5. The Payment Information field can be left blank.
  6. Click Save.
    sezzle_app_offline_payments
  7. Go to Apps > Sezzle.
  8. Copy your Merchant ID, Public Key and Private Key from your Sezzle Merchant Dashboard, and paste them into the corresponding fields in the Sezzle configuration page of your BigCommerce admin.
  9. Select the applicable Offline Payment Method.
  10. Check the Add Sezzle Widget Script box. This will inject the widget script into the product and cart pages of your store.
  11. Save the configuration.
    sezzle_app_control_panel
  12. Go to Storefront > Script Manager. Confirm that the Sezzle Checkout and Sezzle Widget scripts appear in the list of installed scripts.
    sezzle_app_script_manager
  13. Installation is complete.

BigCommerce Sandbox Testing

  1. In the Sezzle configuration page of your BigCommerce admin, enter the Sandbox API Keys from your Sezzle Merchant Sandbox Dashboard and check the Use Sandbox checkbox, then save the configuration. Make sure you are doing this on your dev/staging website. bigcommerce sandbox testing
  2. On your website, add an item to the cart, then proceed to Checkout and select Sezzle as the payment method.
  3. Click Place Order and you should be redirected to the Sezzle checkout page. If prompted, sign in. onepage bigcommerce payment movement
  4. Enter the payment details using test data, then click Complete Order.
  5. After the payment is completed on Sezzle, you should be redirected back to your website and see a successful payment page.
  6. Sandbox testing is complete. You can log in to your Sezzle Merchant Sandbox Dashboard to see the test order you just placed.
  7. Verify the payment by checking the order in your BigCommerce admin. You will be able to see Staff Notes with the Sezzle Reference ID and order status as Awaiting Fulfillment.
  8. If the payment is unsuccessful, order status will be Awaiting Payment and there will be no Sezzle Reference ID in Staff Notes.

BigCommerce Live Checkout

  1. In the Sezzle configuration page of your BigCommerce admin, enter the API Keys from your Sezzle Merchant Dashboard and uncheck the Use Sandbox checkbox, then save the configuration.
  2. On your website, add an item to your cart, then proceed to Checkout and select Sezzle as the payment method. bigcommerce checkout
  3. Click Place Order. onepage bigcommerce payment movement
  4. If you are redirected to the Sezzle checkout page, your integration is complete. Congratulations! sezzle checkout
  5. Warning Don’t complete the payment. Your checkout is now live, so you will be charged if you complete.

Troubleshooting

If testing was unsuccessful, review the following:

Manual Theme Integration

If the Checkout script fails, follow the Checkout Loader Script instructions in the Sezzle configuration page to add the custom script manually.

Some custom themes are not compatible with custom scripts. The following steps will walk you through editing your theme to allow loading of custom scripts.

  1. From your BigCommerce admin, go to Storefront > My Themes.
  2. In your Current Theme, click Advanced. If you have a copied theme, select Edit Theme Files and proceed to step 4. If you do not have a copied theme or would prefer to create a new copy, then click Make a Copy. You can name your copy whatever you like. A copy of your theme with the new name will appear below in the My Themes area. copy_theme
  3. Find the copy of your theme under My Themes. Click the ... icon.
    Click Edit Theme Files. edit_theme_dropdown
  4. When the dashboard asks if you want to edit your theme files, click Edit Theme Files to confirm. confirm_edit_theme
  5. In the left sidebar, expand the templates folder, then the pages folder and select the checkout.html file. Please note that some themes may store the checkout.html file in a different location. file_directory
  6. In your checkout.html file, insert a new line with the text {{{head.scripts}}} between {{#partial "head"}} and the corresponding {{/partial}}, then click Save & Apply File.
    • More info can be found on {{partial}} in String Helpers of the Big Commerce Handlebars Helper Reference. partial_tag scripts_tag
  7. If you created a copy of your theme in step 2, find the new copy of your theme in the My Themes section, click the ... icon, and click Apply. If prompted to select a style, select your preferred style and click Continue. Your newly copied theme should now be your Current Theme.

If the BigCommerce app fails to maintain the widget script on the product pages, or to add the script manually for additional pages, complete the following steps:

  1. Go to Storefront > Script Manager.
  2. Click the Create a Script button.
  3. Set Name of script to Sezzle Widget.
  4. Set Location on page to Footer.
  5. Set Select pages where script will be added to All pages.
  6. Set Script category to Essential.
  7. Set Script type to Script.
  8. In the Script content area, copy+paste the script, then click Save.

The script to be inserted into your webpage is as follows:

Template: <script src="https://widget.sezzle.com/v1/javascript/price-widget?uuid={sezzle_merchant_uuid}"></script>

Note: Update {sezzle_merchant_uuid} in the above script template to reflect your site’s Merchant ID (removing the curly brackets), which can be found in the Sezzle Merchant Dashboard.

Example: <script src="https://widget.sezzle.com/v1/javascript/price-widget?uuid=12a34bc5-6de7-890f-g123-4hi5678jk901"></script>

Instructions may vary slightly depending on your active plug-ins. If the issue persists after completing the above steps, look for other available features that allow the addition of a custom HTML code snippet to the site footer. If no such feature is found, the below steps may be followed as a last resort:

  1. Go to Storefront > My Themes.
  2. In your Current Theme, click Advanced then select Edit Theme Files.
  3. In the confirmation window, click Edit Theme Files.
  4. In the file list, go to templates > pages, then select product.html.
  5. Copy+paste the script into the very bottom of the file, then click Save and Apply Files.
  6. Repeat the previous step for the cart.html file.

For assistance with widget configuration, click Request Addition of Widgets in the widget step of your Sezzle Merchant Dashboard Setup Checklist.

Uninstall Steps

  1. Go to Apps > My Apps.
  2. Under the Sezzle App, click Uninstall. sezzle uninstall
  3. Go to Store Setup > Payments.
  4. Disable the Offline Payment method that was being used for Sezzle.

Bold Cashier

This guide describes how to integrate Sezzle into your Bold Cashier website so that you can provide Sezzle as a payment option for your customers. After integrating Sezzle, your Bold Cashier site will:

  1. Offer Sezzle as a payment option on the checkout page.
  2. Refund Sezzle payments from your Bold Cashier order management system.
  3. Authorize and capture payments.

This integration is currently only available on Shopify.

Integration Steps Overview

  1. Install the Sezzle Bold Cashier app
  2. Test your integration

Before You Begin

  1. You should have a Sezzle merchant account.
    • Please visit our signup page if you don’t have an account.
  2. You should generate API Keys using your Sezzle Merchant Dashboard
  3. Familiarize yourself with the transaction flow when buying with Sezzle.

Install the Sezzle Bold Cashier Extension

  1. First you must install the Bold Cashier app to your platform and store url. You can do this from the Bold Cashier site.
  2. Log in to your Shopify admin.
  3. Go to Apps > Bold Cashier. Bold cashier
  4. In the Bold Cashier left sidebar, click Marketplace, then find Sezzle and click Install. Bold install
  5. Click Allow to accept permissions and complete the installation. Bold permissions
  6. Installation is complete. Bold marketplace

Bold Cashier Live Checkout

  1. On your website, add an item to your cart, then proceed to Checkout and select Sezzle as the payment method.
  2. Click Complete Order.
  3. If you are redirected to the Sezzle checkout page, your integration is complete. Congratulations! sezzle checkout
  4. Warning Don’t complete the payment. Your checkout is now live, so you will be charged if you complete.

Uninstall Steps

  1. Go to your Bold Cashier Marketplace and scroll to find Sezzle.
  2. Click Uninstall. Bold marketplace

BuyItLive

This guide describes how to integrate Sezzle into your BuyItLive website so that you can provide Sezzle as a payment option for your customers. After integrating Sezzle, your BuyItLive site will:

  1. Offer Sezzle as a payment option on the checkout page.
  2. Refund Sezzle payments from your BuyItLive order management system.
  3. Authorize and capture payments.

Integration Steps Overview

  1. Add and configure the Sezzle BuyItLive App
  2. Test your integration

Before You Begin

  1. You should have a Sezzle merchant account.
    • Please visit our signup page if you don’t have an account.
  2. Make sure you have the following Sezzle details handy.
  3. Familiarize yourself with the transaction flow when buying with Sezzle.

BuyItLive Admin Configuration

  1. Log in to your website’s BuyItLive admin.
  2. Click Add Payment Provider.
  3. Select Connect with Sezzle.
  4. Go to Sezzle Payments > Tools.
  5. Copy your Private Key and Public Key from your Sezzle Merchant Dashboard, and paste them into the corresponding fields in the Sezzle configuration page of your BuyItLive admin.
  6. Click Save Settings.
  7. Go to Cart Settings and ensure the Sezzle switch is in the On position.
  8. Installation is complete.

BuyItLive Live Checkout

  1. On your website, add an item to your cart, then proceed to Checkout and select Sezzle as the payment method.
  2. Click Place Order.
  3. If you are redirected to the Sezzle checkout page, your integration is complete. Congratulations! sezzle checkout
  4. Warning Don’t complete the payment. Your checkout is now live, so you will be charged if you complete.

CommentSold

This guide describes how to integrate Sezzle into your CommentSold website so that you can provide Sezzle as a payment option for your customers. After integrating Sezzle, your CommentSold site will:

  1. Offer Sezzle as a payment option on the checkout page.
  2. Refund Sezzle payments from your CommentSold order management system.
  3. Authorize and capture payments.

Integration Steps Overview

  1. Configure the Sezzle CommentSold App
  2. Test your integration

Before You Begin

  1. You should have a Sezzle merchant account.
    • Please visit our signup page if you don’t have an account.
  2. Make sure you have the following Sezzle details handy.
  3. Familiarize yourself with the transaction flow when buying with Sezzle.

CommentSold Admin Configuration

  1. In your CommentSold admin, go to Setup.
  2. Click Payment Gateways.
  3. Copy your Private Key and Public Key from your Sezzle Merchant Dashboard, and paste them into the corresponding fields in the Sezzle configuration page of your CommentSold admin.
  4. Click Update Keys. sezzle_payment_config
  5. Installation is complete.

CommentSold Live Checkout

  1. In the Sezzle configuration page of your CommentSold admin, enter the API Keys from your Sezzle Merchant Dashboard and uncheck the Use Sandbox checkbox, then save the configuration.
  2. On your website, add an item to your cart, then proceed to Checkout and select Sezzle as the payment method.
  3. Click Place Order.
  4. If you are redirected to the Sezzle checkout page, your integration is complete. Congratulations! sezzle checkout
  5. Warning Don’t complete the payment. Your checkout is now live, so you will be charged if you complete.

Magento 1

This guide describes how to integrate Sezzle into your Magento 1 website so that you can provide Sezzle as a payment option for your customers. After integrating Sezzle, your Magento 1 site will:

  1. Offer Sezzle as a payment option on the checkout page.
  2. Refund Sezzle payments from your Magento 1 order management system.
  3. Display Sezzle promotional messaging.
  4. Authorize and capture payments.
  5. Offer instant and delayed capture.

Integration Steps Overview

  1. Install and configure the Sezzle Magento 1 extension
  2. Test your integration
  3. (Optional) Sandbox Testing

Before You Begin

  1. You should have a Sezzle merchant account.
    • Please visit our signup page if you don’t have an account.
  2. Make sure you have the following Sezzle details handy.
  3. Familiarize yourself with the transaction flow when buying with Sezzle.

Install the Sezzle Magento 1 Extension

For the below instructions, assume [Magento] represents your root Magento directory.

  1. Download the .zip or tar.gz file from Sezzle’s github repository.
  2. Unzip the file and follow the following instructions.
  3. Copy all files in the extracted folder’s: /app/code/community/ to: [MAGENTO]/app/code/community.
  4. Copy all files in the extracted folder’s /app/design/frontend/base/default/layout/ to: [MAGENTO]/app/design/frontend/base/default/layout.
  5. Copy all files in the extracted folder’s /app/design/frontend/base/default/template/ to: [MAGENTO]/app/design/frontend/base/default/template.
  6. Copy all files in the extracted folder’s: /app/etc/ to: [MAGENTO]/app/etc.
  7. Copy all files in the extracted folder’s: /js to: [MAGENTO]/js.
  8. Log in to your Magento 1 admin and go to System/Cache Management.
  9. Flush the cache storage by selecting Flush Cache Storage.

Note : To upgrade the extension, completely remove the previously added Sezzle Magento extension files, then repeat the above steps with the updated sezzle-magento repository.

Admin Configuration

  1. Go to System > Configuration > Sales > Payment Methods > Sezzle.
  2. Configure the extension as follows:
    1. Set Enabled to Yes.
    2. Copy your Merchant ID from your Sezzle Merchant Dashboard, and paste it into the corresponding field in the Sezzle configuration page of your Magento 1 admin.
    3. Copy your Public Key and Private Key from your Sezzle Merchant Dashboard, and paste them into the corresponding fields in the Sezzle configuration page of your Magento 1 admin.
    4. Set API Mode to Live.
    5. If you want the widget script added to the Product Display Page, set Add Widget Script in PDP to Yes
    6. If you want the widget script added to the Cart Page, set Add Widget Script in Cart Page to Yes
    7. Set Payment from Applicable Countries to Specific Countries.
    8. Set Payment from Specific Countries to United States or Canada as applicable.
    9. Set Payment Action as Authorize Only to authorize the payment at the time the order is placed but capture payment later, or Authorize and Capture to both authorize and capture at the time the order is placed.
      • If Authorize Only is selected, then the capture expiry time will be visible in the Order Details page. You need to capture the payment before the given deadline by choosing Capture Online when you create the invoice.
    10. Save the configuration. admin sezzle
  3. Go to System/Cache Management.
  4. Flush the cache storage by selecting Flush Cache Storage.
  5. Installation is complete.

Magento 1 Sandbox Testing

  1. In the Sezzle configuration page of your Magento 1 admin, enter the Sandbox API Keys from your Sezzle Merchant Sandbox Dashboard and set the API Mode to Sandbox/Test, then save the configuration. Make sure you are doing this on your dev/staging website.
  2. On your website, add an item to the cart, then proceed to Checkout and select Sezzle as the payment method.
  3. Click Continue then Place Order and you should be redirected to the Sezzle checkout page. If prompted, sign in. onepage movement
  4. Enter the payment details using test data, then click Complete Order.
  5. After the payment is completed on Sezzle, you should be redirected back to your website and see a successful payment page.
  6. Sandbox testing is complete. You can log in to your Sezzle Merchant Sandbox Dashboard to see the test order you just placed.

Magento 1 Live Checkout

  1. In the Sezzle configuration page of your Magento 1 admin, enter the API Keys from your Sezzle Merchant Dashboard and set the API Mode to Live, then save the configuration.
  2. On your website, add an item to the cart, then proceed to Checkout and select Sezzle as the payment method.
  3. Click Continue then Place Order. onepage movement
  4. If you are redirected to the Sezzle checkout page, your integration is complete. Congratulations! sezzle checkout
  5. Warning Don’t complete the payment. Your checkout is now live, so you will be charged if you complete.

Troubleshooting

If testing was unsuccessful, review the following:

Magento 2

This guide describes how to integrate Sezzle into your Magento 2 website so that you can provide Sezzle as a payment option for your customers. After integrating Sezzle, your site will:

  1. Offer Sezzle as a payment option on the checkout page.
  2. Refund Sezzle payments from your Magento 2 order management system.
  3. Display Sezzle promotional messaging.
  4. Authorize and capture payments.
  5. Offer instant and delayed capture.

Integration Steps Overview

  1. Install and configure the Sezzle Magento 2 extension
  2. Test your integration
  3. (Optional) Sandbox Testing

Before You Begin

  1. You should have a Sezzle merchant account.
    • Please visit our signup page if you don’t have an account.
  2. Make sure you have the following Sezzle details handy.
  3. Familiarize yourself with the transaction flow when buying with Sezzle.

Install the Sezzle Magento 2 Extension

For the below instructions, assume [Magento] represents your root Magento directory.

Composer Way

Go to the Magento 2 installation directory, then run the below commands:

  1. composer require sezzle/sezzlepay
  2. php bin/magento setup:upgrade
  3. php bin/magento setup:di:compile
  4. php bin/magento setup:static-content:deploy
  5. php bin/magento cache:clean

Manual Way

  1. In your Magento 2 [Magento]/app/code/ create a folder called Sezzle.
  2. Inside the new Sezzle folder, create a folder called Sezzlepay.
  3. Inside the new Sezzlepay folder, extract the files from this repository.
  4. Open the command line then run the below commands:
    1. php bin/magento module:enable Sezzle_Sezzlepay
    2. php bin/magento setup:upgrade
    3. php bin/magento setup:di:compile
    4. php bin/magento setup:static-content:deploy
  5. Log in to your Magento 2 admin and go to System/Cache Management.
  6. Flush the cache storage by selecting Flush Cache Storage.

Note : If you have installed the extension via Composer Way, upgrade it by executing composer remove sezzle/sezzlepay and then follow the above Composer Way process again. For manual installation, remove the Sezzle directory from [Magento]/app/code and follow the above Manual Way process again to upload the newer version.

Admin Configuration

  1. Go to Store > Configuration > Sales > Payment Methods > Sezzle.
  2. Click Configure.
  3. Click I've already set up Sezzle, I want to edit my settings. then click Payment Settings. admin sezzle magento2 option expand
  4. Configure the extension as follows:
    1. Set Enabled to Yes.
    2. Set Payment Mode to Live.
    3. Copy your Merchant ID from your Sezzle Merchant Dashboard, and paste it into the corresponding field in the Sezzle configuration page of your Magento 2 admin.
    4. Copy your Public Key and Private Key from your Sezzle Merchant Dashboard, and paste them into the corresponding fields in the Sezzle configuration page of your Magento 2 admin.
    5. If you want the widget script added to the Product Display Page, set Add Widget Script in PDP to Yes
    6. If you want the widget script added to the Cart Page, set Add Widget Script in Cart Page to Yes
    7. Set Payment from Applicable Countries to Specific Countries.
    8. Set Payment from Specific Countries to United States or Canada as applicable.
    9. Set Payment Action as Authorize Only to authorize the payment at the time the order is placed but capture the payment later, or Authorize and Capture to both authorize and capture at the time the order is placed.
      • If “Authorize Only” is selected, then the capture expiry time will be visible in the Order Details page. You need to capture the payment before the given deadline by choosing Capture Online when you create the invoice.
    10. Save the configuration. admin sezzle magento2 pay
  5. Go to System/Cache Management.
  6. Flush the cache storage by selecting Flush Cache Storage.
  7. Installation is complete.

Magento 2 Sandbox Testing

  1. In the Sezzle configuration page of your Magento 2 admin, enter the Sandbox API Keys from your Sezzle Merchant Sandbox Dashboard and set the API Mode to Sandbox/Test, then save the configuration. Make sure you are doing this on your dev/staging website.
  2. On your website, add an item to the cart, then proceed to Checkout and select Sezzle as the payment method.
  3. Click Place Order and you should be redirected to the Sezzle checkout page. If prompted, sign in.
  4. Enter the payment details using test data, then click Complete Order.
  5. After the payment is completed on Sezzle, you should be redirected back to your website and see a successful payment page.
  6. Sandbox testing is complete. You can log in to your Sezzle Merchant Sandbox Dashboard to see the test order you just placed.

Magento 2 Live Checkout

  1. In the Sezzle configuration page of your Magento 2 admin, enter the API Keys from your Sezzle Merchant Dashboard and disable Sandbox/Test as the API Mode, then save the configuration.
  2. On your website, add an item to the cart, then proceed to Checkout and select Sezzle as the payment method.
  3. Click Place Order.
  4. If you are redirected to the Sezzle checkout page, your integration is complete. Congratulations! sezzle checkout
  5. Warning Don’t complete the payment. Your checkout is now live, so you will be charged if you complete.

Troubleshooting

If testing was unsuccessful, review the following:

NopCommerce

This guide describes how to integrate Sezzle into your NopCommerce website so that you can provide Sezzle as a payment option for your customers. After integrating Sezzle, your NopCommerce site will:

  1. Offer Sezzle as a payment option on the checkout page.
  2. Refund Sezzle payments from your NopCommerce order management system.
  3. Authorize and capture payments.
  4. Offer instant and delayed capture.

Integration Steps Overview

  1. Install and configure the Sezzle NopCommerce extension
  2. Test your integration
  3. (Optional) Sandbox Testing

Before You Begin

  1. You should have a Sezzle merchant account.
    • Please visit our signup page if you don’t have an account.
  2. Make sure you have the following Sezzle details handy.
  3. Familiarize yourself with the transaction flow when buying with Sezzle.

Install the Sezzle NopCommerce Extension

Go to https://www.nopcommerce.com/sezzle and click Get Extension.

Admin Configuration

  1. Go to Configuration > Local Plugins.
  2. Click Upload Plugin or Theme and select the downloaded zipped file per the instructions given.
  3. After the extension has been uploaded, click Install.
  4. Under Configuration, go to Payment Methods and then click Configure under Sezzle. admin nopcommerce
  5. Click Edit from the Payment Method list.
  6. Copy your Merchant ID from your Sezzle Merchant Dashboard, and paste it into the corresponding field in the Sezzle configuration page of your NopCommerce admin.
  7. Copy your Public Key and Private Key from your Sezzle Merchant Dashboard, and paste them into the corresponding fields in the Sezzle configuration page of your NopCommerce admin.
  8. Set Transaction Mode to either Authorize or Authorize and Capture.
  9. Save the configuration. admin nopcommerce sezzlepay
  10. To restrict Sezzle usage based on billing country, go to Configuration > Payment Restrictions.
  11. Choose the country you want to restrict for Sezzle. Please note that Sezzle is currently available for customers from The United States and Canada. You may wish to restrict all countries where Sezzle is not available. admin nopcommerce_sezzlepay restriction
  12. Integration is complete.

NopCommerce Sandbox Testing

  1. In the Sezzle configuration page of your NopCommerce admin, enter the Sandbox API Keys from your Sezzle Merchant Sandbox Dashboard and check the Use Sandbox checkbox, then save the configuration. Make sure you are doing this on your dev/staging website.
  2. On your website, add an item to the cart, then proceed to Checkout and select Sezzle as the payment method.
  3. Click Confirm and you should be redirected to the Sezzle checkout page. If prompted, sign in. onepage nopcommerce payment movement
  4. Enter the payment details using test data, then click Complete Order.
  5. After the payment is completed on Sezzle, you should be redirected back to your website and see a successful payment page.
  6. Sandbox testing is complete. You can log in to your Sezzle Merchant Sandbox Dashboard to see the test order you just placed.

NopCommerce Live Checkout

  1. In the Sezzle configuration page of your NopCommerce admin, enter the API Keys from your Sezzle Merchant Dashboard and uncheck the Use Sandbox checkbox, then save the configuration.
  2. On your website, add an item to the cart, then proceed to Checkout and select Sezzle as the payment method. nopcommerce product page nopcommerce product page
  3. Click Continue then Confirm. onepage nopcommerce payment movement
  4. If you are redirected to the Sezzle checkout page, your integration is complete. Congratulations! sezzle checkout
  5. Warning Don’t complete the payment. Your checkout is now live, so you will be charged if you complete.

Shopify

This guide describes how to integrate Sezzle into your Shopify website so that you can provide Sezzle as a payment option for your customers. After integrating Sezzle, your Shopify site will:

  1. Offer Sezzle as a payment option on the checkout page.
  2. Refund Sezzle payments from your Shopify order management system.
  3. Display Sezzle promotional messaging.
  4. Authorize and capture payments.

Integration Steps Overview

  1. Install and configure the Sezzle Shopify App
  2. Test your integration
  3. (Optional) Sandbox Testing

Before You Begin

  1. You should have a Sezzle merchant account.
    • Please visit our signup page if you don’t have an account.
  2. Make sure you have the following Sezzle details handy.
  3. Familiarize yourself with the transaction flow when buying with Sezzle.

Install the Sezzle Shopify Extension

  1. Log in to your website’s Shopify admin.
  2. In your Sezzle Merchant Dashboard Setup Checklist, click Download Shopify App.
  3. Click Get the App.
  4. Click Install Unlisted App.
    install_unlisted_app
  5. In your Sezzle Merchant Dashboard Setup Checklist, click Install Gateway via Shopify.
  6. Click Instructions.
  7. Click the first hyperlink on the new page. If prompted, select your Shopify store.
  8. Click Install Payment Provider.
    install_payment_provider

Admin Configuration

  1. In your Shopify admin, go to Settings > Payment Providers.
    sezzle_payment_config
  2. Under Alternative Payment Methods, click Choose Alternative Payment.
    choose_alternative_payment
  3. Search for and click on Sezzle.
    select_sezzle
  4. Copy your Public Key and Private Key from your Sezzle Merchant Dashboard, and paste them into the corresponding fields in the Sezzle configuration page of your Shopify admin.
  5. Update Accepted Payments as desired, then click Save.
    account_information
  6. Installation is complete.

Shopify Live Checkout

  1. In the Sezzle configuration page of your Shopify admin, enter the API Keys from your Sezzle Merchant Dashboard and uncheck the Enable Test Mode checkbox, then save the configuration.
  2. On your website, add an item to your cart, then proceed to Checkout and select Sezzle as the payment method.
  3. Click Place Order. checkout
  4. If you are redirected to the Sezzle checkout page, your integration is complete. Congratulations!
  5. Warning Don’t complete the payment. Your checkout is now live, so you will be charged if you complete.

Troubleshooting

If testing was unsuccessful, review the following:

Manual Theme Integration

If the Shopify app fails to maintain the widget script on the product pages, or to add the script manually for additional pages, complete the following steps:

  1. Go to Sales Channels > Online Store > Themes.
  2. Click Actions, then select Edit Code.
  3. In the Code Explorer, go to the Templates folder and select the product.liquid file.
  4. Copy+paste the script to the very bottom of the file, then click Save.
  5. Repeat the previous step in the cart.liquid file.

Note: If you have additional custom product templates, step 4 will need to be repeated for each file, or the script added to a global file, such as layout/theme.liquid.

The script to be inserted into your webpage is as follows:

Template: <script src="https://widget.sezzle.com/v1/javascript/price-widget?uuid={sezzle_merchant_uuid}"></script>

Note: Update {sezzle_merchant_uuid} in the above script template to reflect your site’s Merchant ID (removing the curly brackets), which can be found in the Sezzle Merchant Dashboard

Example: <script src="https://widget.sezzle.com/v1/javascript/price-widget?uuid=12a34bc5-6de7-890f-g123-4hi5678jk901"></script>

For assistance with widget configuration, click Request Addition of Widgets in the widget step of your Sezzle Merchant Dashboard Setup Checklist.

Uninstall Steps

  1. Go to Apps.
  2. Under Sezzle, click Delete.
  3. Go to Settings > Payment Providers.
  4. Under Alternative Payment Methods, find Sezzle and click Edit.
  5. Click Deactivate Sezzle.
  6. Click Deactivate Sezzle to confirm.

Inventory Locking

Our Shopify integration has an optional feature to prevent overselling while a customer is checking out with Sezzle. To enable this feature, please reach out to our Merchant Success team at accounts@sezzle.com.

WooCommerce

This guide describes how to integrate Sezzle into your WooCommerce website so that you can provide Sezzle as a payment option for your customers. After integrating Sezzle, your WooCommerce site will:

  1. Offer Sezzle as a payment option on the checkout page.
  2. Refund Sezzle payments from your WooCommerce order management system.
  3. Display Sezzle promotional messaging.
  4. Authorize and capture payments.

Integration Steps Overview

  1. Install and configure the Sezzle WooCommerce extension
  2. Test your integration
  3. (Optional) Sandbox Testing

Before You Begin

  1. You should have a Sezzle merchant account.
    • Please visit our signup page if you don’t have an account.
  2. Make sure you have the following Sezzle details handy.
  3. Familiarize yourself with the transaction flow when buying with Sezzle.

Install the Sezzle WooCommerce Extension

  1. Log in to your website’s Wordpress admin.
    • Ex: your-website.com/wp-admin wordpress login
  2. In the left sidebar, click Plugins > Add New.
  3. Search for Sezzle.
  4. Click Install Now. search sezzle
  5. Click Activate. activate sezzle

Admin Configuration

  1. In the left sidebar, click WooCommerce > Settings .
  2. Select the Payments tab. payment settings
  3. Click the Manage button for Sezzle. select sezzle
  4. Copy your Merchant ID, Private Key and Public Key from your Sezzle Merchant Dashboard, and paste them into the corresponding fields in the Sezzle configuration page of your WooCommerce admin.
  5. Check the Show Sezzle widget in product pages box.
  6. Click Save Changes. sezzle page overview
  7. Installation is complete.

WooCommerce Sandbox Testing

  1. In the Sezzle configuration page of your WooCommerce admin, enter the Sandbox API Keys from your Sezzle Merchant Sandbox Dashboard and set the Sezzle API URL to https://sandbox.gateway.sezzle.com/v1, then save the configuration. Make sure you are doing this on your dev/staging website.
  2. On your website, add an item to the cart, then proceed to Checkout and select Sezzle as the payment method.
  3. Click Place Order, and you should be redirected to the Sezzle checkout page. If prompted, sign in. select sezzle payment
  4. Enter the payment details using test data, then click Complete Order.
  5. After the payment is completed on Sezzle, you should be redirected back to your website and see a successful payment page.
  6. Sandbox testing is complete. You can log in to your Sezzle Merchant Sandbox Dashboard to see the test order you just placed.

WooCommerce Live Checkout

  1. In the Sezzle configuration page of your WooCommerce admin, enter the API Keys from your Sezzle Merchant Dashboard and set the Sezzle API URL to https://gateway.sezzle.com/v1, then save the configuration.
  2. On your website, add an item to the cart, then proceed to Checkout and select Sezzle as the payment method.
  3. Click Place Order. select sezzle payment
  4. If you are redirected to the Sezzle checkout page, your integration is complete. Congratulations!
  5. Warning Don’t complete the payment. Your checkout is now live, so you will be charged if you complete.

Important Note on Order Fulfillment

Before shipping the order, ensure that the Order Notes in the WooCommerce interface show the order status is Processing and include Payment approved by Sezzle. When these notes exist, you know that the customer completed the checkout at Sezzle, and you will be paid for the order.

WooCommerce will create an order regardless of whether the customer completes the checkout at Sezzle. Check the Order Notes and do not fulfill orders where the Sezzle checkout is not completed.

Troubleshooting

If testing was unsuccessful, review the following:

Uninstall Steps

  1. Go to Plugins > Installed Plugins.
  2. Under Sezzle WooCommerce Payment, click Deactivate then click Delete.

Zoey

This guide describes how to integrate Sezzle into your Zoey website so that you can provide Sezzle as a payment option for your customers. After integrating Sezzle, your Zoey site will:

  1. Offer Sezzle as a payment option on the checkout page.
  2. Refund Sezzle payments from your Zoey order management system.
  3. Authorize and capture payments.

Integration Steps Overview

  1. Install and configure the Sezzle Zoey extension
  2. Test your integration
  3. (Optional) Sandbox Testing

Before You Begin

  1. You should have a Sezzle merchant account.
    • Please visit our signup page if you don’t have an account.
  2. Make sure you have the following Sezzle details handy.
  3. Familiarize yourself with the transaction flow when buying with Sezzle.

Install the Sezzle Zoey Extension

Go to https://www.zoey.com/apps/sezzle/ and click Get App.

Admin Configuration

  1. Go to Set-up > Payment Methods > Sezzle.
  2. Click Configure. admin zoey
  3. Configure the extension as follows:
    1. Set Enabled to Yes.
    2. Copy your Merchant ID from your Sezzle Merchant Dashboard, and paste it into the corresponding field in the Sezzle configuration page of your Zoey admin.
    3. Copy your Public Key and Private Key from your Sezzle Merchant Dashboard, and paste them into the corresponding fields in the Sezzle configuration page of your Zoey admin.
    4. If you want the widget script added to the Product Display Page, set Add Widget Script in PDP to Yes
    5. If you want the widget script added to the Cart Page, set Add Widget Script in Cart Page to Yes
    6. Set Payment from Applicable Countries to Specific Countries.
    7. Set Payment from Specific Countries to United States or Canada as applicable.
    8. Save the configuration. admin zoey sezzlepay
  4. Click Advanced/Refresh Your Store.
  5. Installation is complete.

Zoey Sandbox Testing

  1. In the Sezzle configuration page of your Zoey admin, enter the Sandbox API Keys from your Sezzle Merchant Sandbox Dashboard and set the API Mode to Sandbox/Test, then save the configuration. Make sure you are doing this on your dev/staging website.
  2. On your website, add an item to the cart, then proceed to Checkout and select Sezzle as the payment method.
  3. Click Continue then Place Order and you should be redirected to the Sezzle checkout page. If prompted, sign in. onepage zoey payment movement
  4. Enter the payment details using test data, then click Complete Order.
  5. After the payment is completed on Sezzle, you should be redirected back to your website and see a successful payment page.
  6. Sandbox testing is complete. You can log in to your Sezzle Merchant Sandbox Dashboard to see the test order you just placed.

Zoey Live Checkout

  1. In the Sezzle configuration page of your Zoey admin, enter the API Keys from your Sezzle Merchant Dashboard and set the API Mode to Live, then save the configuration.
  2. On your website, add an item to your cart, then proceed to Checkout and select Sezzle as the payment method.
  3. Click Continue then Place Order. onepage zoey payment movement
  4. If you are redirected to the Sezzle checkout page, your integration is complete. Congratulations! sezzle checkout
  5. Warning Don’t complete the payment. Your checkout is now live, so you will be charged if you complete.