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error 10181 - Error 10181 - UNKNOWN_MID_TID

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/TID pair is not recognised.

You have forced the use of a specific contract by specifying the terminal ID (TID or Terminal ID) in the vads_contracts field.

However, the requested MID/TID pair is not recognised.

Change the details of your payment form by using the contracts (MID + TID) associated with your shop.

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