Sofort is a payment provider allowing customers to pay using payment methods saved to their Sofort account, a popular payment method in Europe. This section is intended to help you implement Sofort based on your preferred integration workflow.

Services and compatibility

Gateway-specific information

You can choose to integrate with the Sofort alternative payment method through the Checkout.com connection/gateway.

Sofort through Checkout.com does not support installments or recurring payments. For additional information, see Recurring payments.

Nexio supports the following countries and regions for the customer's billing country with Sofort:

• Austria (AT)
• Belgium (BE)
• Germany (DE)
• Italy (IT)
• Netherlands, The (NL)
• Spain (ES)

Configuration

When adding Sofort through Checkout.com, you need to work with Integrations Support to add it as a payment method. You also need to configure your Checkout.com account to enable the Sofort payment method.

For Sofort through Checkout.com, you must provide the following information to Integrations Support:

• Checkout.com private key (secret key)
• Checkout.com processing channel ID

Required fields

The following table shows the required and optional fields for Sofort transactions in the Create APM one-time-use token request.

Example requests

The following are example one-time-use token requests for Sofort.

curl -X POST https://api.nexiopaysandbox.com/apm/v3/token \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json' \
  -H 'Authorization: Basic [Base64_encoded_login]'
  -d '{
  "data": {
    "amount": 4.00,
    "currency": "EUR",
    "paymentMethod": "sofortCheckout",
    "customer": {
      "orderNumber": "12345678",
      "firstName": "John",
      "lastName": "Doe",
      "email": "[email protected]",
      "billToCountry": "DE"
    }
  }
}'

{
  "expiration": "2023-09-18T15:43:05.664Z",
  "token": "830d36f6-a5e3-4455-9600-3a55b63e2fc2",
  "asyncTraceId": "830d36f6-a5e3-4455-9600-3a55b63e2fc2",
  "expressIFrameUrl": "https://www.api.nexiopaysandbox.com/v3?token=830d36f6-a5e3-4455-9600-3a55b63e2fc2",
  "redirectUrls": [...],
  "buttonIFrameUrls": [
    {
      "paymentMethod": "sofortCheckout",
      "url": "https://api.nexiopaysandbox.com/apm/v3?token=830d36f6-a5e3-4455-9600-3a55b63e2fc2&paymentMethod=sofortCheckout"
    }
  ]
}

For the multi iframe integration method: You use the expressIFrameUrl value in the steps for the transaction.

For the individual iframe option: You use the buttonIFrameUrls.url (of the desired Sofort paymentMethod) for the transaction.

Transaction types and integration methods

Regardless of the integration method workflow you implement, consumers are redirected to Sofort to complete their transactions.

Nexio supports the following transaction types for Sofort:

• Sale
  • In an iframe that displays all payment methods available to the customer (based on the customer’s location and the merchant’s configured payment methods)
    
    
    • In an individual iframe
      
• Refund

Testing data

For testing data, see Checkout.com's Testing Sofort section of the "Sofort" page.

Response handling

In the one-time-use token request, Sofort gets returned in the paymentMethod parameter as sofortCheckout.

Nexio responds with transaction results in one of the following ways, depending on your integration workflow:

• Event messages: This applies to integrations that do not pass a customerRedirectUrl in the request.
• Response fields in the URL: This applies to integrations that do provide a customerRedirectUrl in the request.

In addition to one of the above, if your merchant account is configured to receive webhooks, Nexio provides responses to the webhook URLs that have been registered. For further explanation of the webhook event types, see the webhook Event types table.

For Sofort, these are the possible webhook event types:

• TRANSACTION_AUTHORIZED
• TRANSACTION_REFUNDED
• TRANSACTION_SETTLED

For information about how to run each of the integration workflows, see Transaction types and integration methods above.

Status workflows

The status of a successful transaction with Sofort varies, depending on the options you choose.

*Pending status displays as "authorized" or "AUTHORIZED" in the Nexio Dashboard; it displays as 10, meaning "authorized", in the response when querying transactions (for more information about transactionStatus, see the table).

Next steps

Now, you are ready to get started with running transactions:

• Run a sale transaction

If you have any additional questions or feedback, see Contact us.