What to Do When Encountering the "400 BAD_REQUEST: Not supported debtor account" Error with Wise Bank

When initiating a payment via Wise Bank, you might encounter the following error message:

{
"Code": "INVALID_REQUEST",
"Message": "Invalid Request",
"Errors": [
{
"ErrorCode": "400 BAD_REQUEST",
"Message": "Not supported debtor account."
}
]
}

This error indicates that the debtor account (IBAN) used in the request is not supported by Wise Bank. This typically happens when the IBAN does not belong to an account recognised by Wise Bank's systems.

Common Scenarios

Debtor IBAN Mismatch:

  • This error is commonly seen when the IBAN provided does not match an account owned by a customer of Wise bank.

Incorrect Bank IBAN:

  • If you are using an IBAN that does not belong to the supported bank (e.g., using a N26 IBAN when the system expects a Wise Bank IBAN), the system will reject the request.

Steps to Resolve the Issue

Verify the IBAN:

  • Ensure that the IBAN used in the request belongs to a Wise Bank account.

Use a Wise Bank IBAN:

  • For transactions involving Wise Bank, use an IBAN that is recognised and supported by Wise Bank. Wise bank has an IBAN checker you can utilise: https://wise.com/gb/iban/checker

Retry the Payment:

  • After correcting the IBAN to a Wise Bank IBAN, retry the payment process.
     

Additional Assistance

If you continue to encounter issues despite following these steps, please contact our support team for further assistance. Providing specific details about the error and the IBAN used will help in diagnosing and resolving the issue more efficiently.

 

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