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 eligible_amount_negative error appears during a transaction via Conecs Electronic Meal Vouchers.
We invite you to check the following reason.
|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.