Unknown Payment Method

Indicates the payment method is unknown to SumUp.

Common Causes

• The payment method value is misspelled or not supported.
• The method is not returned by the available payment methods endpoint.
• The method is not enabled for the merchant account.

{
  "type": "https://developer.sumup.com/docs/problem/unknown-payment-method/",
  "title": "Bad Request",
  "status": 400,
  "detail": "Unknown payment method: NonExistingPaymentMethod",
  "instance": "7fe5fcddbf28"
}