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.
The FRANFINANCE_4X_FEES_OPTION error appears during a transaction via Franfinance.
We invite you to check the following reason(s) to resolve the issue:
|The FEES_4X value is invalid.|
By default, the rules for fee application upon a 4xWEB payment is defined in MID configuration.
However, the merchant has the possibility to enable or disable fee application via his or her payment form.
To do so, the vads_acquirer_transient_data field should be valued as follows:
Make sure that you transmit the "Y" or "N" values for the FEES_4X key.