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Hi, i have a solution, the response of the bank goes to this url: mydomain.com/checkout.php?action=gateway_ping&provider=checkout_sermepa, into my class "class CHECKOUT_SERMEPA extends ISC_CHECKOUT_PROVIDER" there is a function gateway_ping(), in this function i change the state and wr...

i'm developing a checkout module for spanish bank. this module is based in other module of interspire, worldpay. the integration with the administration panel is ok, and i send the variables via http_post to the bank is ok too. But at the end of transaction, the bank send me response with the result...