||Unique identifier (token or UMR) associated with a payment method.
- This identifier can be generated by the payment gateway.
In this case, this parameter must not be populated.
Otherwise, it can be generated by the merchant website.
In this case, this parameter must be populated with the desired value of the identifier. The merchant website must make sure that each identifier is unique. Any registration request containing an existing identifier will be rejected and an error message will appear.
Input and output field, returned in the response (IPN and Return URL).
||Two possible formats:
- an32: if the identifier is generated by the payment gateway. This format is only used by the payment gateway.
- ans..50: if the identifier is generated by the merchant. Cannot be an32 in this case.
||Recurring payment details.