Sofort

Start accepting payments using Sofort, a favorite payment method in Europe.

📘

To start accepting Sofort payments, please contact your customer success manager.

Process a Sofort payment

You process a Sofort payment in two steps:

  1. Request a Sofort payment
  2. Redirect the customer

Step 1: Request a Sofort payment

The request

Use the details below to set up your request.

Endpoint live

https://api.checkout.com/payments

Endpoint sandbox

https://api.sandbox.checkout.com/payments

Header parameters

Header

Value

Authorization Required

secret key

Use the valid secret key of your Checkout.com account. You can find this in the Hub.

Content-Type\ Required

application/json

Body parameters

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The table below describes the minimum recommended fields. You can find the full list, as well as complete request and response examples, in our API reference.

Field name

Description

source Object required

Details about the payment source.

source.type\ String\ required

The type of payment source. Set this to sofort.

amount\ String\ Optional

The payment amount. Omitting the amount or providing 0 will perform a card verification.

currency\ String\ required

The three-letter ISO currency code. Set this to EUR.

Request example

{
  "source": {
    "type": "sofort"
  },
  "amount": 1000,
  "currency": "EUR"
}

📘

If a customer ID or email is not provided in the request, we automatically create a customer profile and return the customer id in the response.

The response

If a payment ID is returned, your request was successful.

Example response

{
  "id": "pay_ylcikkxovyjunekfu7a444mmvy",
  "status": "Pending",
  "customer": {
    "id": "cus_izfg7cwguvxuhaquys6qtof2f4"
  },
  "_links": {
    "self": {
      "href": "https://api.sandbox.checkout.com/payments/pay_ylcikkxovyjunekfu7a444mmvy"
    },
    "redirect": {
      "href": "https://sandbox.checkout.com/LP.Core/api/payment/108689"
    }
  }
}

Step 2: Redirect the customer

Redirect your customer to the redirect link’s href in the response to Step 1. The redirect transfers the customer to their bank's website where they will be asked to enter their authorization details; if successful, the payment can be approved.

Once completed, the customer is transferred to your predefined success or failure URL. Confirmation of a Sofort payment is communicated only through webhooks. When you receive a payment_captured webhook notification, the transaction has been completed successfully. Until the payment_captured webhook is received (response code 10000), all payments are labeled as Pending.

Get details about a Sofort payment

You can retrieve details about an existing Sofort payment with the following request.

The request

Use the details below to set up your request.

Endpoint live

GEThttps://api.checkout.com/payments/{payment_id}

Endpoint sandbox

GEThttps://api.sandbox.checkout.com/payments/{payment_id}

Header and path parameters

Header

Value

Authorization Required

secret key

Use the valid secret key of your Checkout.com account. You can find this in the Hub.

Content-Type\ Required

application/json

Path

Value

payment_id Required

The payment ID found in the response of the initial payment.

The response

If the payment has been approved by a customer on the banking page, the response will include the bic, iban, and account_holder_name fields, and you will have received a payment_capture_pending webhook.

Example responses

{
  "id": "pay_ylcikkxovyjunekfu7a444mmvy",
  "requested_on": "2018-11-22T15:58:35Z",
  "source": {
    "type": "sofort"
    },
  "amount": 100,
  "currency": "EUR",
  "payment_type": "Regular",
  "status": "Pending",
  "risk": {
    "flagged": false
  },
  "customer": {
    "id": "cus_izfg7cwguvxuhaquys6qtof2f4"
  },
  "_links": {
    "self": {
      "href": "https://api.sandbox.checkout.com/payments/pay_ylcikkxovyjunekfu7a444mmvy"
    }
  }
}
{
  "id": "pay_ylcikkxovyjunekfu7a444mmvy",
  "requested_on": "2018-11-22T15:58:35Z",
  "source": {
    "type": "sofort",
    "bic": "SFRTDE20XXX",
    "iban": "DE06000000000023456789",
    "account_holder_name": "Max Mustermann"
  },
  "amount": 100,
  "currency": "EUR",
  "payment_type": "Regular",
  "status": "Pending",
  "risk": {
    "flagged": false
  },
  "customer": {
    "id": "cus_izfg7cwguvxuhaquys6qtof2f4"
  },
  "_links": {
    "self": {
      "href": "https://api.sandbox.checkout.com/payments/pay_ylcikkxovyjunekfu7a444mmvy"
    }
  }
}
{
  "id": "pay_ylcikkxovyjunekfu7a444mmvy",
  "requested_on": "2018-11-22T16:04:35Z",
  "source": {
    "type": "sofort",
    "bic": "SFRTDE20XXX",
    "iban": "DE06000000000023456789",
    "account_holder_name": "Max Mustermann"
  },
  "amount": 100,
  "currency": "EUR",
  "payment_type": "Regular",
  "approved": true,
  "status": "Captured",
  "risk": {
    "flagged": false
  },
  "customer": {
    "id": "cus_izfg7cwguvxuhaquys6qtof2f4"
  },
  "_links": {
    "self": {
      "href": "https://api.sandbox.checkout.com/payments/pay_ylcikkxovyjunekfu7a444mmvy"
    },
    "actions": {
      "href": "https://api.sandbox.checkout.com/payments/pay_ylcikkxovyjunekfu7a444mmvy/actions"
    },
    "refund": {
      "href": "https://api.sandbox.checkout.com/payments/pay_ylcikkxovyjunekfu7a444mmvy/refunds"
    }
  }
}

Refund a Sofort payment

Sofort supports both partial and full refunds. You can refund a payment through the Hub or using the refund API.

Cancel a Sofort payment

If the customer cancels or fails to complete the transaction at any point after the payment is created, it will automatically be canceled, and we’ll send you a payment_canceled webhook.

Webhooks

When using Sofort, you may receive the following webhooks.

Webhook

Description

payment_pending

Sent when a payment request has successfully initiated.

payment_declined

Sent when a payment request has been rejected.

payment_expired

Sent when the payment has expired. (Sofort payments expire after one hour.)

payment_capture_pending

Sent when the customer has approved the payment on the banking page.

payment_captured

Sent when the payment has been successfully captured.

payment_canceled

Sent when the customer has aborted the payment or the payment has failed.

payment_refunded

Sent when the payment has been (fully or partially) refunded.

payment_refund_declined

Sent when a refund has been declined.

Testing Sofort

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To start testing, you'll need to:

  • Create a test account.
  • Contact your customer success manager or integrations engineer to activate Sofort payments in the sandbox environment.
  • Also, if you want to test capturing a Sofort payment, you will need to contact us so we can manually trigger it in sandbox.
  1. Create a Sofort transaction as above, and then follow the redirect link to Sofort/Klarna's website.
  2. Into the 'Bank name, BLZ, IBAN or BIC' field enter 88888888, and then click 'Next' to continue.
  3. Enter 88888888 in the 'Account number' field, and 123456 in the 'PIN' field. Click 'Next'.
  4. Select any account on the next page and then click 'Next'.
  5. Enter 12345 in the 'TAN' field and click 'Next'.
  6. You should then be redirected to your predefined success URL.

Can we help?

Thanks for using Checkout.com. If you need any help or support, then message our support team at [email protected].