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 email notification containing the form that the gateway was unable to process and the value of the invalid field.
The eligible_amount_negative error appears during a transaction via Conecs Electronic Meal Vouchers.
We invite you to check the following cause.
|The expressed amount is negative.|
Make sure the value of eligibleAmount element is not negative (-).
For CONECS, for example, the vads_acquirer_transient_data field should be valued as follows:
Therefore for 12.99 euros, the eligibleAmount field must be set to 1299 and not -1299.