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error 10121 - Error 10121 - INSTALLMENTS_NOT_SUPPORTED

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 specified card type does not support installment payments

You have requested the creation of an installment payment (vads_payment_config field).

However, the transmitted value of the vads_payment_cards field corresponds to a card type that does not support installment payments.

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