error 10106

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 requested MID is not associated with your shop

The value transmitted in the vads_contracts field of your payment form corresponds to an existing MID that is not associated with your shop.


  • Update MID association via your Merchant Back Office (Settings > Shop menu > MID association tab).
  • Change the value of the vads_contracts field in your payment form.
  • Contact E-commerce customer service.