The Paygate interfaces
About this manual
This manual describes the programming and the scope of services of the Paygate Merchant Interface and is aimed at users of NEXI Paygate. The target group for this manual includes programming and technical key staff in the company.
NEXI Paygate is a payment gateway for the secure processing of transactions via the Internet, Mail Order and POS.
About the Paygate
NEXI Paygate offers several interfaces for the submission of payment tasks. The Merchant Interface described in this document serves to connect Internet shops and enterprise resource planning systems. The Paygate Merchant Interface accepts payment orders, encrypts the data and carries out payment transactions.
Test Mode
NEXI Paygate supports testing of your implementation before going live. Three different operating modes are supported:
In the live / productive operation mode all payments are forwarded live to the connected service provider (e.g. acquirer, bank, scheme, downstream service provider). These payment transactions are carried out in real life.
In the test system (Downstream) mode, payment transactions are forwarded to a downstream test system. This is not available for all payment methods and is noted in the corresponding payment method documentation.
As well as the simulation mode: In this mode all payment processes within NEXI Paygate are simulated. This mode is available for all payment types.
Response Codes
Paygate uses numerical response codes which provide information about the transaction status. To determine success or error of a transaction more precisely, please analyse the response parameter Code. For a detailed breakdown of these codes, please see the Response Codes.