Using the Sezzle API

Obtain Authentication Token

US/CA: POST https://gateway.sezzle.com/v2/authentication

EU: POST https://gateway.eu.sezzle.com/v2/authentication

Sezzle uses scoped API keys to allow access to the API. You can find/generate these keys on your merchant dashboard (US/CA) or (EU) 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

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"
}

You must replace the tokens you obtain from the Sezzle Authorization endpoint every 120 minutes. However, we do not restrict you to a single token, and you can obtain a new one at any time.

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

View the Sezzle v2 OpenAPI Specification.

Client Generator

The OpenAPI Specification can be imported into the Swagger Editor to easily generate a Sezzle client in a variety of programming languages. If your language is not supported by Swagger, an alternate tool is OpenAPI Generator.

Testing

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

Sandbox Testing

(US)
API Endpoint https://sandbox.gateway.sezzle.com/v2

Sandbox Dashboard https://sandbox.dashboard.sezzle.com/merchant

(EU)
API Endpoint https://sandbox.gateway.eu.sezzle.com/v2

Sandbox Dashboard https://sandbox.dashboard.eu.sezzle.com/merchant

Credentials to log in to the sandbox dashboard are the ones you use to log in to the Sezzle Merchant Dashboard (US/CA) or Sezzle Merchant Dashboard (EU). You can create your test API keys in the sandbox dashboard.

Test Data

You can use the following test data to test your integration

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 US or CA phone number.
2. The expected OTP is 123123.
3. Personal information does not need to be real.

Debit card

IBAN Number DE89370400440532013000

Email Address any

Name any

Click here to test more countries.

Errors

v2 endpoints will return an array of standardized error objects.

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

Error Response Body

[
{
"code": "invalid",
"location": "order.amount.amount_in_cents",
"message": "Order amount must be greater than $0.99",
"debug_uuid": "919f40d0-874b-4d98-810d-ed2246a8ad77"
}
]

Sessions

A session represents an order, a tokenization of a customer, or both. Use the session endpoints to post a new session or get the details of an existing session.

Create a session

US/CA: POST https://gateway.sezzle.com/v2/session

EU: POST https://gateway.eu.sezzle.com/v2/session

This endpoint creates a session in our system, and it returns the URL that you should redirect the user to. You can use a session to create an order, tokenize a customer, or both.

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.

If you submit an order with a session, then Sezzle is able to handle the entire checkout process after an order has been provided. However, if your flow requires that the user confirm their checkout on your site after being approved by Sezzle, you may set the intent parameter to AUTH with the session request. In this flow, Sezzle will not complete the transaction unless you make a capture request. Capture requests can be made to capture all or part of the original order amount. You must send the capture request before the authorization expires. By default, authorizations expire within in 30 minutes, but the expiration period for new authorizations may be extended up to 7 days in your merchant dashboard US/CN or merchant dashboard EU.

If you tokenize a customer, then the customer will have the option to agree to allow you to process future transactions on their behalf. This gives you the ability to preapprove, authorize, and capture future transactions on behalf of the customer.

Request Body

{
"cancel_url": {
"href": "https://sezzle.com/cart",
"method": "GET"
},
"complete_url": {
"href": "https://sezzle.com/complete",
"method": "GET"
},
"customer": {
"tokenize": true,
"email": "[email protected]",
"first_name": "John",
"last_name": "Doe",
"phone": "5555045294",
"dob": "1990-02-25",
"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"
}
},
"order": {
"intent": "CAPTURE",
"reference_id": "ord_12345",
"description": "sezzle-store - #12749253509255",
"requires_shipping_info": true,
"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"
}
}
],
"metadata": {
"location_id": "123",
"store_name": "Downtown Minneapolis",
"store_manager": "Jane Doe"
},
"shipping_amount": {
"amount_in_cents": 1000,
"currency": "USD"
},
"tax_amount": {
"amount_in_cents": 1000,
"currency": "USD"
},
"order_amount": {
"amount_in_cents": 10000,
"currency": "USD"
}
}
}

Response Body

{
"uuid": "fadbc642-05a4-4e38-9e74-80e325623af9",
"links": [
{
"href": "https://gateway.sezzle.com/v2/session/fadbc642-05a4-4e38-9e74-80e325623af9",
"method": "GET",
"rel": "self"
}
],
"order": {
"uuid": "12a34bc5-6de7-890f-g123-4hi1238jk902",
"checkout_url": "https://checkout.sezzle.com/?id=12a34bc5-6de7-890f-g123-4hi1238jk902",
"intent": "CAPTURE",
"links": [
{
"href": "https://gateway.sezzle.com/v2/order/12a34bc5-6de7-890f-g123-4hi1238jk902",
"method": "GET",
"rel": "self"
},
{
"href": "https://gateway.sezzle.com/v2/order/12a34bc5-6de7-890f-g123-4hi1238jk902",
"method": "PATCH",
"rel": "self"
},
{
"href": "https://gateway.sezzle.com/v2/order/12a34bc5-6de7-890f-g123-4hi1238jk902/release",
"method": "POST",
"rel": "release"
},
{
"href": "https://gateway.sezzle.com/v2/order/12a34bc5-6de7-890f-g123-4hi1238jk902/capture",
"method": "POST",
"rel": "capture"
},
{
"href": "https://gateway.sezzle.com/v2/order/12a34bc5-6de7-890f-g123-4hi1238jk902/refund",
"method": "POST",
"rel": "refund"
}
]
},
"tokenize": {
"token": "7ec98824-67cc-469c-86ab-f9e047f9cf1a",
"expiration": "2020-04-27T14:46:59Z",
"approval_url": "https://dashboard.sezzle.com/customer/checkout-approval?merchant-request-id=3f3244fd-78ce-4994-af0c-b8c760d47794",
"links": [
{
"href": "https://gateway.sezzle.com/v2/token/7ec98824-67cc-469c-86ab-f9e047f9cf1a/session",
"method": "GET",
"rel": "token"
}
]
}
}

Session Object

A valid session object contains at a minimum an Order object or a Customer object with tokenize set to true.

URL Object

This is used for both the cancel and complete URL objects

Customer object

Address Object

This format is used for both billing_address and shipping_address in the Customer object.

Order object

Your order reference ID must be a unique identifier, and may only contain 'a-Z', '0-9', '-', and '_'.

Item Object

Discount Object

Metadata Object

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

Shipping Amount Object

A price object

Tax Amount Object

A price object

Price Object

The price object is used for items, discounts, shipping amount, tax amount, and order amount.

Notification Object

A valid notification object contains at a minimum a phone or an email.

Get a session

US/CA: GET https://gateway.sezzle.com/v2/session/{session_uuid}

EU: GET https://gateway.eu.sezzle.com/v2/session/{session_uuid}

You can retrieve the details of an existing session using this endpoint.

Response Body

{
"uuid": "fadbc642-05a4-4e38-9e74-80e325623af9",
"links": [
{
"href": "https://gateway.sezzle.com/v2/session/fadbc642-05a4-4e38-9e74-80e325623af9",
"method": "GET",
"rel": "self"
}
],
"order": {
"uuid": "12a34bc5-6de7-890f-g123-4hi1238jk902",
"intent": "CAPTURE",
"checkout_url": "https://checkout.sezzle.com/?id=12a34bc5-6de7-890f-g123-4hi1238jk902",
"links": [
{
"href": "https://gateway.sezzle.com/v2/order/12a34bc5-6de7-890f-g123-4hi1238jk902",
"method": "GET",
"rel": "self"
},
{
"href": "https://gateway.sezzle.com/v2/order/12a34bc5-6de7-890f-g123-4hi1238jk902",
"method": "PATCH",
"rel": "self"
},
{
"href": "https://gateway.sezzle.com/v2/order/12a34bc5-6de7-890f-g123-4hi1238jk902/release",
"method": "POST",
"rel": "release"
},
{
"href": "https://gateway.sezzle.com/v2/order/12a34bc5-6de7-890f-g123-4hi1238jk902/capture",
"method": "POST",
"rel": "capture"
},
{
"href": "https://gateway.sezzle.com/v2/order/12a34bc5-6de7-890f-g123-4hi1238jk902/refund",
"method": "POST",
"rel": "refund"
}
]
},
"tokenize": {
"token": "7ec98824-67cc-469c-86ab-f9e047f9cf1a",
"expiration": "2020-04-27T14:46:59Z",
"approval_url": "https://dashboard.sezzle.com/customer/checkout-approval?merchant-request-id=3f3244fd-78ce-4994-af0c-b8c760d47794",
"links": [
{
"href": "https://gateway.sezzle.com/v2/token/7ec98824-67cc-469c-86ab-f9e047f9cf1a/session ",
"method": "GET",
"rel": "token"
}
]
}
}

Orders

Use the orders endpoints to get order details, update an order, release an amount by order, capture an amount by order, or refund an amount by order.

The {order_uuid} is the value returned from Create session (order.uuid) or Create order by customer (uuid). It is a different value than the Order ID displayed in the Sezzle Merchant Dashboard. It is important to note the Merchant Dashboard Order ID is not generated until a checkout is completed at Sezzle, whereas the {order_uuid} can represent an order before and after checkout completion.

Order payment flow

1. Merchant calls /v2/session with order and intent of AUTH or CAPTURE. Optionally, the merchant can send customer information.
2. Sezzle returns order uuid and checkout URL.
3. Merchant redirects customer to Sezzle checkout URL.
4. Customer completes the Sezzle checkout and is redirected to the session complete URL.

• If the intent was to CAPTURE, Sezzle will capture the total order amount.
• If the intent was to AUTH, Sezzle will only authorize the total order amount and the merchant can call /v2/order later to release or capture amounts using the order uuid.

Get an order

US/CA: GET https://gateway.sezzle.com/v2/order/{order_uuid}

EU: GET https://gateway.eu.sezzle.com/v2/order/{order_uuid}

Use this endpoint to get details on an existing order

Response Body

{
"uuid": "12a34bc5-6de7-890f-g123-4hi1238jk902",
"links": [
{
"href": "https://gateway.sezzle.com/v2/order/12a34bc5-6de7-890f-g123-4hi1238jk902",
"method": "GET",
"rel": "self"
},
{
"href": "https://gateway.sezzle.com/v2/order/12a34bc5-6de7-890f-g123-4hi1238jk902",
"method": "PATCH",
"rel": "self"
},
{
"href": "https://gateway.sezzle.com/v2/order/12a34bc5-6de7-890f-g123-4hi1238jk902/release",
"method": "POST",
"rel": "release"
},
{
"href": "https://gateway.sezzle.com/v2/order/12a34bc5-6de7-890f-g123-4hi1238jk902/capture",
"method": "POST",
"rel": "capture"
},
{
"href": "https://gateway.sezzle.com/v2/order/12a34bc5-6de7-890f-g123-4hi1238jk902/refund",
"method": "POST",
"rel": "refund"
}
],
"intent": "AUTH",
"reference_id": "ord_12345",
"description": "sezzle-store - #12749253509255",
"metadata": {
"location_id": "123",
"store_name": "Downtown Minneapolis",
"store_manager": "Jane Doe"
},
"order_amount": {
"amount_in_cents": 10000,
"currency": "USD"
},
"items": [
{
"name": "widget",
"sku": "sku123456",
"quantity": 1,
"price": {
"amount_in_cents": 1000,
"currency": "USD"
}
}
],
"customer": {
"email": "[email protected]",
"first_name": "John",
"last_name": "Doe",
"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"
}
},
"authorization": {
"authorization_amount": {
"amount_in_cents": 10000,
"currency": "USD"
},
"approved": true,
"expiration":"2020-04-23T16:13:44Z",
"financing_option": "4-pay-biweekly",
"releases": [
{
"uuid": "4b4d217c-18f1-4bfb-996e-767470c04661",
"amount": {
"amount_in_cents": 3000,
"currency": "USD"
}
}
],
"captures": [
{
"uuid": "f4415e94-e562-47cc-94f3-92279f27dc20",
"amount": {
"amount_in_cents": 7000,
"currency": "USD"
}
}
],
"refunds": [
{
"uuid": "83162d2f-d5f1-43ad-91ed-e8231920ce6d",
"amount": {
"amount_in_cents": 1000,
"currency": "USD"
}
}
]
}
}

Update an order

US/CA: PATCH https://gateway.sezzle.com/v2/order/{order_uuid}

EU: PATCH https://gateway.eu.sezzle.com/v2/order/{order_uuid}

Use this endpoint to update an existing order. Only the reference ID can be updated.

Update Order Object

Request Body

{
"reference_id": "ord_9876"
}

There is no response body for this request. If successful, we return an HTTP 204 Status No Content.

Release amount by order

US/CA: POST https://gateway.sezzle.com/v2/order/{order_uuid}/release

EU: POST https://gateway.eu.sezzle.com/v2/order/{order_uuid}/release

Use this endpoint to release an amount by order.

Header Parameters

Release Order Object

A price object

Price Object

Request Body

{
"amount_in_cents": 5000,
"currency": "USD"
}

Response Body

{
"uuid": "6c9db5d4-d09a-4224-860a-b5438ac32ca8"
}

Capture amount by order

US/CA: POST https://gateway.sezzle.com/v2/order/{order_uuid}/capture

EU: POST https://gateway.eu.sezzle.com/v2/order/{order_uuid}/capture

Use this endpoint to capture an amount by order.

Header Parameters

Capture Amount By Order Object

Capture Amount Object

A price object.

Price Object

Request Body

{
"capture_amount": {
"amount_in_cents": 5000,
"currency": "USD"
},
"partial_capture": true
}

Response Body

{
"uuid": "6c9db5d4-d09a-4224-860a-b5438ac32ca8"
}

The {uuid} returned from this operation is the capture transaction uuid, but there are no endpoints that use this value. You may retrieve an order's capture transactions using the Get an order endpoint.

Refund amount by order

US/CA: POST https://gateway.sezzle.com/v2/order/{order_uuid}/refund

EU: POST https://gateway.eu.sezzle.com/v2/order/{order_uuid}/refund

Use this endpoint to refund an amount by order

Header Parameters

Refund Amount Object

A price object.

Price Object

Request Body

{
"amount_in_cents": 5000,
"currency": "USD"
}

Response Body

{
"uuid": "6c9db5d4-d09a-4224-860a-b5438ac32ca8"
}

The {uuid} returned from this operation is the refund transaction uuid, but there are no endpoints that use this value. You may retrieve an order's refund transactions using the Get an order endpoint.

Delete checkout by order

DELETE https://gateway.sezzle.com/v2/order/{order_uuid}/checkout

Use this endpoint to delete a checkout for an order. The request fails if the checkout has already
been successfully completed by the customer.

If you have redirected the customer to the Sezzle checkout and subsequently cancel the order in
your ecommerce platform, then you should immediately call this endpoint to prevent the possibility
of the customer completing the Sezzle checkout.

There is no response body for this request. If successful, we return an HTTP 204 Status No Content.

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

US/CA: GET https://gateway.sezzle.com/v2/settlements/summaries

EU: GET https://gateway.eu.sezzle.com/v2/settlements/summaries

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

US/CA: GET https://gateway.sezzle.com/v2/settlements/details/{payout_uuid}

EU: GET https://gateway.eu.sezzle.com/v2/settlements/details/{payout_uuid}

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:

Line item column definitions:

Line item event type definitions:

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 Request

US/CA: GET https://gateway.sezzle.com/v2/interest/balance

EU: GET https://gateway.eu.sezzle.com/v2/interest/balance

Interest Account Activity Request

US/CA: GET https://gateway.sezzle.com/v2/interest/activity

EU: GET https://gateway.eu.sezzle.com/v2/interest/activity

Interest Account Balance Response Body

{
"interest_balance": 5183.4624
}

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

Customers

Use the customers endpoints to get a list of customers, get details on an existing customer, delete a customer, preapprove an amount for the customer, or create an order for a customer.

Get a list of customers

US/CA: GET https://gateway.sezzle.com/v2/customer

EU: GET https://gateway.eu.sezzle.com/v2/customer

You can retrieve a list of existing customers using this endpoint.

Response Body

[
{
"uuid": "a9d8e15c-5e4a-4201-aa8f-7540f934a9a2",
"expiration":  "2020-04-28T17:58:11Z",
"links": [
{
"href": "https://gateway.sezzle.com/v2/customer/a9d8e15c-5e4a-4201-aa8f-7540f934a9a2",
"method": "GET",
"rel": "self"
},
{
"href": "https://gateway.sezzle.com/v2/customer/a9d8e15c-5e4a-4201-aa8f-7540f934a9a2",
"method": "DELETE",
"rel": "self"
},
{
"href": "https://gateway.sezzle.com/v2/customer/a9d8e15c-5e4a-4201-aa8f-7540f934a9a2/preapprove",
"method": "POST",
"rel": "preapprove"
},
{
"href": "https://gateway.sezzle.com/v2/customer/a9d8e15c-5e4a-4201-aa8f-7540f934a9a2/order",
"method": "POST",
"rel": "order"
}
]
}
]

Get a customer

US/CA: GET https://gateway.sezzle.com/v2/customer/{customer_uuid}

EU: GET https://gateway.eu.sezzle.com/v2/customer/{customer_uuid}

You can use this endpoint to get details on an existing customer

Response Body

{
"uuid": "a9d8e15c-5e4a-4201-aa8f-7540f934a9a2",
"links": [
{
"href": "https://gateway.sezzle.com/v2/customer/a9d8e15c-5e4a-4201-aa8f-7540f934a9a2",
"method": "GET",
"rel": "self"
},
{
"href": "https://gateway.sezzle.com/v2/customer/a9d8e15c-5e4a-4201-aa8f-7540f934a9a2",
"method": "DELETE",
"rel": "self"
},
{
"href": "https://gateway.sezzle.com/v2/customer/a9d8e15c-5e4a-4201-aa8f-7540f934a9a2/preapprove",
"method": "POST",
"rel": "preapprove"
},
{
"href": "https://gateway.sezzle.com/v2/customer/a9d8e15c-5e4a-4201-aa8f-7540f934a9a2/order",
"method": "POST",
"rel": "order"
}
],
"email": "[email protected]",
"first_name": "John",
"last_name": "Doe",
"phone": "5555045294",
"dob": "1990-02-25",
"token_expiration": "2020-04-27T14:46:59Z",
"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"
}
}

Delete a customer

US/CA: DELETE https://gateway.sezzle.com/v2/customer/{customer_uuid}

EU: DELETE https://gateway.eu.sezzle.com/v2/customer/{customer_uuid}

You can use this endpoint to delete an existing customer

There is no response body for this request. If successful, we return an HTTP 204 Status No Content.

Preapprove amount by customer

US/CA: POST https://gateway.sezzle.com/v2/customer/{customer_uuid}/preapprove

EU: POST https://gateway.eu.sezzle.com/v2/customer/{customer_uuid}/preapprove

You can use this endpoint to preapprove an amount for a customer

Request Body

{
"amount_in_cents": 5000,
"currency": "USD"
}

Preapprove Object

A price Object

Price Object

Response Body

{
"uuid": "6c9db5d4-d09a-4224-860a-b5438ac32ca8",
"approved": true
}

Create order by customer

US/CA: POST https://gateway.sezzle.com/v2/customer/{customer_uuid}/order

EU: POST https://gateway.eu.sezzle.com/v2/customer/{customer_uuid}/order

You can use this endpoint to create an order for a customer

Header Parameters

Request Body

{
"intent": "AUTH",
"reference_id": "monthly_sub_123",
"order_amount": {
"amount_in_cents": 5000,
"currency": "USD"
}
}

Order Payment Object

Order Amount Object

A price object. The amount must be greater than 99.

Price Object

Response Body

{
"uuid": "6c9db5d4-d09a-4224-860a-b5438ac32ca8",
"links": [
{
"href": "https://gateway.sezzle.com/v2/order/6c9db5d4-d09a-4224-860a-b5438ac32ca8",
"method": "GET",
"rel": "self"
},
{
"href": "https://gateway.sezzle.com/v2/order/6c9db5d4-d09a-4224-860a-b5438ac32ca8",
"method": "PATCH",
"rel": "self"
},
{
"href": "https://gateway.sezzle.com/v2/order/6c9db5d4-d09a-4224-860a-b5438ac32ca8/release",
"method": "POST",
"rel": "release"
},
{
"href": "https://gateway.sezzle.com/v2/order/6c9db5d4-d09a-4224-860a-b5438ac32ca8/capture",
"method": "POST",
"rel": "capture"
},
{
"href": "https://gateway.sezzle.com/v2/order/6c9db5d4-d09a-4224-860a-b5438ac32ca8/refund",
"method": "POST",
"rel": "refund"
},
],
"intent": "AUTH",
"reference_id": "monthly_sub_123",
"order_amount": {
"amount_in_cents": 5000,
"currency": "USD"
},
"authorization": {
"authorization_amount": {
"amount_in_cents": 5000,
"currency": "USD"
},
"approved": true,
"expiration":"2020-04-23T16:13:44Z"
}
}

Tokenization

Use the token endpoints to get the status of a customer tokenization

Customer tokenization

1. Merchant calls /v2/session with customer tokenize of true. Optionally, the merchant can send customer information.
2. Sezzle returns the tokenize session token and approval URL.
3. Merchant redirects customer to Sezzle approval URL.
4. Customer can agree (or disagree) to allow future Sezzle transactions by the merchant and is redirected to the session complete URL. If the customer agrees to be tokenized, Sezzle will add a query parameter to the complete URL named customer-uuid, allowing the merchant to get the uuid of the customer.

• Alternatively, the merchant can call /v2/token with this tokenize session token to get the uuid of the customer.

5. Merchant can subsequently charge the customer by calling /v2/customer to create an order using the customer-uuid.

• If successful, merchant can call /v2/order to release, capture, or refund the order.

The merchant has the option to create an order payment and tokenize the customer in a single session. In this instance, the merchant should redirect the customer to the Sezzle checkout URL. During checkout, the customer can agree to allow future Sezzle transactions by the merchant. Again, if the customer agrees to be tokenized, Sezzle will add a query parameter to the complete URL named `customer-uuid`. *Note: Sezzle still returns an approval URL on create session. If the customer does not agree to be tokenized during checkout, the merchant can use the approval URL at a later time.*

Response Body

{
"token": "4f8cf865-2089-4423-85fd-ea833a16b62d",
"expiration": "2020-04-29T19:31:54Z",
"links": [
{
"href": "https://gateway.sezzle.com/v2/token/4f8cf865-2089-4423-85fd-ea833a16b62d/session",
"method": "GET",
"rel": "self"
}
],
"customer": {
"uuid": "a9d8e15c-5e4a-4201-aa8f-7540f934a9a2",
"expiration": "2020-10-13T14:29:41Z",
"links": [
{
"href": "https://gateway.sezzle.com/v2/customer/a9d8e15c-5e4a-4201-aa8f-7540f934a9a2",
"method": "GET",
"rel": "self"
}
]
}
}

Get session tokenization

US/CA: GET https://gateway.sezzle.com/v2/token/{token}/session

EU: GET https://gateway.eu.sezzle.com/v2/token/{token}/session

You can use this endpoint to get the current state of a session (tokenize) token

If the customer is not tokenized, then the customer object will be omitted.

Webhooks

You can use these endpoints to configure your webhooks

Create webhooks

US/CA: POST https://gateway.sezzle.com/v2/webhooks

EU: POST https://gateway.eu.sezzle.com/v2/webhooks

This endpoint can be used to subscribe to webhooks

Request Body

{
"url": "https://example.com/webhooks",
"events": [
"customer.tokenized"
]
}

Webhooks Object

Response Body

{
"uuid": "747cf28a-bb5c-46a8-a288-d9b006fd6113",
"links": [
]
}

Valid Webhook Events

We accept the following Webhook events

List webhooks

US/CA: GET https://gateway.sezzle.com/v2/webhooks

EU: GET https://gateway.eu.sezzle.com/v2/webhooks

You can get a list of your webhooks using this endpoint

Response Body

[
{
"uuid": "747cf28a-bb5c-46a8-a288-d9b006fd6113",
"links": [
{}
],
"url": "https://example.com/webhooks",
"events": [
"customer.tokenized"
]
}
]

Delete webhooks

US/CA: DELETE https://gateway.sezzle.com/v2/webhooks/{webhooks_uuid}

EU: DELETE https://gateway.eu.sezzle.com/v2/webhooks/{webhooks_uuid}

You can delete your webhooks using this endpoint

There is no response body for this request. If successful, we return an HTTP 204 Status No Content.

Test Webhooks

POST https://gateway.sezzle.com/v2/webhooks/test

You can trigger a test event using this endpoint

Test Webhooks Object

There is no response body for this request. If successful, we return an HTTP 201 Status Created.

Webhook Signature

Webhooks are signed with an HMAC using the SHA256 algorithm. The header Sezzle-Signature value is a hash of the webhook's body with your merchant private key. You should always verify that the signature matches the webhook data to ensure that the webhook came from Sezzle.

Webhook Acceptance and Retries

A webhook has been successfully sent when we receive an HTTP 200 Status OK response. Any other response will queue the webhook to be retried. We will retry several times within the first hour, and a few times for the remainder of that day. The final two attempts are made one day later, and then 3 days later, for a total elapsed time of five days. If the final retry fails, then that subscribed webhook will be deleted for all events. You will need to create the webhook again to resubscribe, if desired.

It is possible that new webhooks will arrive before old webhooks have been retried, so webhooks are not guaranteed to be received in cronological order.

Webhooks are signed using the current merchant private key, not the private key at the time of their creation, so a retried webhook may have a different signature if the keys are changed after its originating event.

SDK

Javascript SDK

The Javascript SDK is for creating an in-context checkout by hosting the Sezzle checkout in a modal iframe or pop-up window.

Javascript SDK Features

• Create Checkout
• Capture Payment
• Supports Sezzle Checkout in an iframe, pop-up window, or redirect to Sezzle
• Handle Payment Success
• Handle Payment Cancel
• Handle Payment Failure
• Render Sezzle Button

Installing the Javascript SDK

• Include https://checkout-sdk.sezzle.com/checkout.min.js in the <head> section of the page.

Implement the Javascript SDK

Button Configuration

• Create a placeholder element for the Sezzle Button to be rendered on the page(s).

• Use HTML attributes to customize the button.

Button Placeholder

<div id="sezzle-smart-button-container"></div>

Button Customization

<div id="sezzle-smart-button-container" style="text-align: center"
templateText="Pay with %%logo%%"
borderType="semi-rounded"
customClass="action,primary,checkout">
</div>

Checkout Configuration

• Edit the page file to implement the SDK.
• Configure the SDK with the following options:
  

Configure Checkout

const checkout = new Checkout({
'mode': "iframe",
'publicKey': "xxxx",
'apiMode': "sandbox",
'apiVersion': "v2"
});

For security reasons, Sezzle must enable an iFrame or popup for you. To have these enabled please send a request with your Sezzle Merchant UUID and a list of domains to be allowed per environment (production and sandbox) to:

https://merchant-help.sezzle.com/hc/en-us/requests/new

Render the Sezzle Button

Call renderSezzleButton passing the id of the placeholder element defined in Button Configuration, above.

Render Button

checkout.renderSezzleButton("sezzle-smart-button-container");

Initialize the Checkout

The SDK requires the following event handlers:

Initialize Checkout

checkout.init({
onClick: function () {},
onComplete : function (event) {},
onCancel: function () {},
onFailure: function (event) {}
});

Hosting the Checkout

To be implemented in the onClick handler. There are two methods for hosting a checkout.

• Use an existing checkout url.

• Use a checkout payload as detailed in the Session Object.

• The cancel and complete urls are not required for iframe and popup mode.

• Tokenization is not supported in the SDK.

Start Checkout with URL

checkout.startCheckout({
checkout_url: "https://checkout.sezzle.com/?id=example"
});

Start Checkout with Payload

checkout.startCheckout({
checkout_payload: {
"order": {
"intent": "AUTH",
"reference_id": "ord_12345",
"description": "sezzle-store - #12749253509255",
"order_amount": {
"amount_in_cents": 10000,
"currency": "USD"
}
}
}
});

Checkout Events

• A successfully completed Sezzle checkout will trigger an event to the onComplete handler. The event should include a data object with the session_uuid and order_uuid.
• If the user exits the Sezzle checkout for any reason, the onCancel handler will be executed.
• Any error will trigger an event to the onFailure handler. The event should include a data object with the error details.

Checkout Completed

function onCompleteHandler(event) {
var data = event.data || Object.create(null);

console.log('checkout data:',
data.session_uuid,
data.order_uuid);
}

checkout.init({
onComplete : onCompleteHandler
});

Capture the Order

Typically implemented in the onComplete handler. Capturing an order is not required if the CAPTURE intent was used when creating the checkout.

The capture payment method requires two parameters, the order_uuid and the payload as detailed in the Capture Amount By Order Object.

Capture Order

var payload = {
capture_amount: {
amount_in_cents: 5000,
currency: "USD"
},
partial_capture: false
};

checkout.capturePayment(data.order_uuid, payload);

Mobile SDK

The Mobile SDK is for integrating the Sezzle checkout and widget into a native mobile app.

Android

The Android SDK is available in Gradle or Maven.

iOS

The iOS SDK is available in CocoaPods.

Widget SDK

Purpose

The Widget SDK 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.

Configuring the Widgets

The config must be specified in a property of the document object called document.sezzleConfig. The SDK also provides various options to customize the widget's position and appearance. The explanation for all the options can be found below:

targetXPath (required)

Purpose: Path to the element in the webpage where the product price text value will be detected.

Type: string, or array of strings

Default: ''

Additional Details: Specify one path if only one price element is targeted. Specify multiple paths in an array if multiple price elements are targeted. The path may contain multiple subpaths. All subpaths need to be separated by the '/' character. IDs need to be preceded by a '#' character. Classes needed to be preceded by a '.' character. Tag names need to be followed by the applicable index. The format of a tagname is as follows: tagName-Index (e.g. 'SPAN-2'). The indexes are zero-based, such that the first element of the specified type within the parent element is at index 0.

Example: '#ProductSection/.product-price/SPAN-1' would target the 2nd 'SPAN' element contained within elements that contain the 'product-price' class which are contained within the element with an ID of 'ProductSection'.

An example of how to configure the widget:

document.sezzleConfig =
{
targetXPath: ['.price'],
renderToPath: ['..'],
urlMatch: 'product',
theme: 'light',
scaleFactor: 1.0,
logoSize: 1.00,
logoStyle: {'margin': '0px 0px -4px 1px','transformOrigin': 'center top'},
altVersionTemplate: {
'en': 'or 4 interest-free payments of %%price%% with %%logo%% %%info%%',
'fr': 'ou 4 paiements de %%price%% sans intérêts avec %%logo%% %%info%%'
},
splitPriceElementsOn: '-',
ignoredPriceElements: ['.Price-compareAt'],
ignoredFormattedPriceText: ['Subtotal', 'Total:', 'Sold Out'],
hideClasses: ['.afterpay-paragraph'],
fontFamily: 'inherit',
fontSize: 12,
fontWeight: 300,
color: 'inherit',
alignment: 'auto',
alignmentSwitchMinWidth: 768,
alignmentSwitchType: 'center',
lineHeight: '13px',
maxWidth: 400,
marginTop: 0,
marginBottom: 0,
marginLeft: 0,
marginRight: 0,
language: navigator.language,
forcedShow: false
}

Only the targetXPath is required in the local config. Each key using the default value may be removed from the sezzleConfig, and the default values will be used automatically.

An example of targetXPath:

<div id="ProductSection">
<div class="product-price">
<span>Price: </span>
<span>$15.99</span>
</div>
</div>
<script type="text/javascript">
document.sezzleConfig = {
targetXPath: '#ProductSection/.product-price/SPAN-1'
}
</script>

renderToPath (optional)

Purpose: Path to the element in the webpage relative to targetXPath where the Sezzle widget should be rendered.

Type: string, or array of strings

Default: '..'

Additional Details: Path to the element below which the widget should render (widget's previous element sibling). If you wish to place widgets in multiple places, you can pass multiple paths in an array. The price path at the nth index of the targetXPath array will be rendered at the path given at the nth index of the renderToPath array. If you do not pass anything to the nth index of the renderToPath array but there is a path at the nth index of targetXPath, then the widget will default to be rendered directly below the parent of the corresponding target element.

'./' will place the widget as the next element sibling of the target element.

'../' means go up one parent element.

As with targetXPath, prepend IDs with '#', classes with '.', and append tag names with the index (tagName-Index). It is recommended to keep the renderToPath as simple as possible to maximize compatibility.

urlMatch (optional)

Purpose: Specific word appearing in the url of pages where the widget config should be applied.

Type: string

Default: ''

Additional Details: Typical values are 'product' or 'cart', as applicable

theme (optional)

Purpose: Updates the logo color to coordinate and contrast with different background colors of websites.

Type: string

Options: dark, light, grayscale, black-flat, white, white-flat

Default: 'light'

scaleFactor (optional)

Purpose: Ratio at which to scale the Sezzle widget.

Type: number

Default: 1.0

logoSize (optional)

Purpose: Ratio at which to scale the Sezzle logo.

Type: number

Default: 1.00

Additional Details: The space the logo occupies between the widget text and the More Info link/icon is determined by the font size. When dramatically scaling the widget, it may be necessary to override the styling to adjust the left and right margins of the logo using logoStyle.

logoStyle (optional)

Purpose: Custom styling to apply to the Sezzle logo within the widget, particularly when using logoSize.

Type: object

Default: {}

Additional Details: The object will accept any CSS styling in JSON format. Keys must be surrounded by '', given in camelCase instead of kebob-case, and separated from the following key by a comma instead of a semi-colon.

altVersionTemplate (optional)

Purpose: Text content of the widget. Also changes the arrangement of price, logo, and the info/learn-more icon within the widget.

Type: string, or object

Default: {en: 'or 4 interest-free payments of %%price%% with %%logo%% %%info%%', fr: 'ou 4 paiements de %%price%% sans intérêts avec %%logo%% %%info%%'}

Additional Details: Currently available templates: %%price%%, %%logo%%, %%link%%, %%info%%, %%question-mark%%, %%line-break%%

splitPriceElementsOn (optional)

Purpose: Character or string at which to split the price elements (for elements with price ranges).

Type: string

Default: ''

Additional Details: Certain websites, especially WooCommerce websites, have price ranges as their price element (e.g. $650 - $1000). Setting this field to the character or string which separates the prices (e.g. in the case above, it is ’-’) enables the widgets to parse the price elements separately. For instance, setting this field to ’-’ would cause the widget to render the widget price above as $162.50 - $250.00.

An example of splitPriceElementsOn:

<div class="price">
<span class="woocommerce-Price-amount">$12</span>
" - "
<span class="woocommerce-Price-amount">$15</span>
</div>
<script type="text/javascript">
document.sezzleConfig = {
targetXPath: '.price/.woocommerce-Price-amount',
splitPriceElementsOn: '-',
relatedElementActions: [{
relatedPath: '.',
initialAction:(e, t)=> {
if(e.nextSibling&&" – "===e.nextSibling.textContent) {
let i=(e.nextElementSibling.innerText.replace(",", "").substr(1)/4).toFixed(2);
t.getElementsByClassName("sezzle-price-split")[0].innerText+=" - $"+i
}
}
},
{
relatedPath: '.',
initialAction:(e, t)=> {
e.previousSibling&&" –" ===e.previousSibling.textContent&&(t.style="display: none")
}
}]
}
</script>

ignoredPriceElements (optional)

Purpose: Child elements of targetXPath to be disregarded when detecting the price and rendering the widget.

Type: array of strings

Default: []

Additional Details: ignoredPriceElements can be used to solve targetXPath variations between sale and regular-priced items. In this case, targetXPath should point to the parent element surrounding the old and the new prices, then ignoredPriceElements will specify the old/compare-at price element. As with targetXPath, prepend IDs with '#', classes with '.', and append tag names with the index (tagName-Index).

An example of ignoredPriceElements:

<span class="ProductMeta__PriceList">
<span class="product__price--regular">$20</span>
<span class="product__price--sale">$15</span>
</span>
<script type="text/javascript">
document.sezzleConfig = {
targetXPath: '.ProductMeta__PriceList',
ignoredPriceElements: ['.product__price--regular']
}
</script>

ignoredFormattedPriceText (optional)

Purpose: Text strings within the targetXPath to be disregarded when detecting the price and rendering the widget.

Type: array of strings

Default: ['Subtotal', 'Total:', 'Sold Out']

hideClasses (optional)

Purpose: Classes of elements that should be hidden when Sezzle's logo is showing. This is useful for hiding a product similar to Sezzle that is not available in a country where Sezzle is.

Type: array of strings

Default: []

fontFamily (optional)

Purpose: Font family of the widget text.

Type: string

Default: 'inherit'

fontSize (optional)

Purpose: Font size of the widget text in pixels.

Type: number

Default: 12

Additional Details: Enter numbers only. Do not enter the unit (e.g. px)!

fontWeight (optional)

Purpose: Boldness of the widget text.

Type: number

Default: 300

Additional Details: 100 is the lightest, 900 is the boldest.

color (optional)

Purpose: Color of the widget text.

Type: string

Default: 'inherit'

Additional Details: Accepts all kinds of values (hexadecimal, rgb(), hsl(), etc...)

alignment (optional)

Purpose: Alignment of the widget relative to the parent element.

Type: string

Options: left, center, right, auto

Default: 'auto'

alignmentSwitchMinWidth (optional)

Purpose: Screen width in pixels below which the alignment switches to alignmentSwitchType instead of alignment.

Type: number

Default: 0

Additional Details: The most common breakpoint is 768 (handheld vs desktop). alignmentSwitchMinWidth is typically only necessary when alignment is not auto.

alignmentSwitchType (optional)

Purpose: Alignment of the widget relative to the parent element to be applied when the viewport width is narrower than alignmentSwitchMinWidth.

Type: string

Options: left, center, right, auto

Default: 'auto'

lineHeight (optional)

Purpose: Content height of the widget.

Type: string

Default: '13px'

Additional Details: Include unit (e.g.: px)

maxWidth (optional)

Purpose: Maximum width of the widget element in pixels.

Type: number

Default: 400

Additional Details: 200 to render the widget nicely on 2 lines, 120 for 3 lines.

marginTop (optional)

Purpose: Amount of space above the widget in pixels.

Type: number

Default: 0

marginBottom (optional)

Purpose: Amount of space below the widget in pixels.

Type: number

Default: 0

marginLeft (optional)

Purpose: Amount of space left of the widget in pixels.

Type: number

Default: 0

marginRight (optional)

Purpose: Amount of space right of the widget in pixels.

Type: number

Default: 0

language (optional)

Purpose: Language in which the widget text should be rendered.

Type: string

Options: 'en', 'fr'

Default: navigator.language

Additional Details: To match the selected language in the window instead of the user's default browser language, use document.querySelector('html').lang. Currently, the SDK only supports 'en' and 'fr'

forcedShow (optional)

Purpose: Shows the widget in every country if true. Shows the widget in only the United States and Canada if false.

Type: boolean

Options: false, true

Default: false

Uploading the Widgets

After building up the config, it is time to upload the widgets to your webpages! The SDK needs to be called in the HTML of the webpage in order for the widgets to be rendered. Place the config and the widget script at the bottom of the code file for the HTML page, and you should be all set!

Placing the following code snippet into your HTML loads the SDK into the webpage.

US/CA

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

EU

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

The script reflecting the applicable merchant ID must be called only after the config is specified (document.sezzleConfig is defined). Here is a complete example:

<script type="text/javascript">
document.sezzleConfig =
{
targetXPath: ['.price'],
renderToPath: ['..'],
urlMatch: 'product',
theme: 'light',
scaleFactor: 1.0,
logoSize: 1.00,
logoStyle: {'margin': '0px 0px -4px 1px','transformOrigin': 'center top'},
altVersionTemplate: {
'en': 'or 4 interest-free payments of %%price%% with %%logo%% %%info%%',
'fr': 'ou 4 paiements de %%price%% sans intérêts avec %%logo%% %%info%%'
},
splitPriceElementsOn: '-',
ignoredPriceElements: ['.Price-compareAt'],
ignoredFormattedPriceText: ['Subtotal', 'Total:', 'Sold Out'],
hideClasses: ['.afterpay-paragraph'],
fontFamily: 'inherit',
fontSize: 12,
fontWeight: 300,
color: 'inherit',
alignment: 'auto',
alignmentSwitchMinWidth: 768,
alignmentSwitchType: 'center',
lineHeight: '13px',
maxWidth: 400,
marginTop: 0,
marginBottom: 0,
marginLeft: 0,
marginRight: 0,
language: navigator.language,
forcedShow: false
}
</script>
<script src="https://widget.sezzle.com/v1/javascript/price-widget?uuid=12a34bc5-6de7-890f-g123-4hi5678jk901"></script>

The "simple" configuration above is intended for a single template of code (product or cart page) individually. Alternatively, a single configuration could be created for the entire webpage using an array of objects called configGroups. The script will determine which configGroup(s) applies to the active webpage and render the widget(s) accordingly.

<script type="text/javascript">
document.sezzleConfig = {
configGroups: [
{
targetXPath: ['.price'],
renderToPath: ['..'],
urlMatch: 'product',
theme: 'light',
scaleFactor: 1.0,
logoSize: 1.00,
logoStyle: {'margin': '0px 0px -4px 1px','transformOrigin': 'center top'},
altVersionTemplate: {
'en': 'or 4 interest-free payments of %%price%% with %%logo%% %%info%%',
'fr': 'ou 4 paiements de %%price%% sans intérêts avec %%logo%% %%info%%'
},
splitPriceElementsOn: '-',
ignoredPriceElements: ['.Price-compareAt'],
ignoredFormattedPriceText: ['Subtotal', 'Total:', 'Sold Out'],
hideClasses: ['.afterpay-paragraph'],
fontFamily: 'inherit',
fontSize: 12,
fontWeight: 300,
color: 'inherit',
alignment: 'auto',
alignmentSwitchMinWidth: 768,
alignmentSwitchType: 'center',
lineHeight: '13px',
maxWidth: 400,
marginTop: 0,
marginBottom: 0,
marginLeft: 0,
marginRight: 0
},
{
targetXPath: '.cart__subtotal',
renderToPath: '../..',
urlMatch: 'cart',
}
],
forcedShow: false,
language: document.querySelector('html').lang || navigator.language,
}
</script>
<script src="https://widget.sezzle.com/v1/javascript/price-widget?uuid=12a34bc5-6de7-890f-g123-4hi5678jk901"></script>