error 51

In PRODUCTION mode, if your Buyer gets an error message such as:

An error occurred during the payment request, please make sure that the posted parameters match the ones specified in the documentation.

It becomes impossible to make the payment and the transaction is definitively lost.

You will receive an e-mail notification containing the form that the gateway was unable to process and the value of the invalid field.

We invite you to check the following reason(s) to resolve the issue:

The format of the field is incorrect.

The vads_threeds_enrolled field designates the cardholder’s enrollment status. It must consist of alphabetic character with a fixed length of 1 character (a1).

The possible values are:
Value Description
Y Cardholder enrolled, 3DS authentication possible.
N Cardholder not enrolled.
U Unable to verify the cardholder’s enrollment status.

Check that the value entered in the form is correct.