Redsys
INSTALL GUIDE
1) Upload the following files:
modules/gateways/sermepa.php
modules/gateways/callback/sermepa.php
2) Enable the payment gateway in whmcs->setup->payments->payment gateways.
Nota: Required fields data will be sent by your bank.
Write your module license in the "Licencia módulo" field.
Once a paymnet is accepted or rejected you can check the log in whmcs->billing->gateway log. In case the payment is rejected you will be able to see the reason in the log.
Note: "Moneda" field must be the coin number not the coin symbol(euro,dolar,etc).