Pre-Authorization Payment

Integration of Pre-Authorization

• Step 1 : Pre-Authorization

  The first time must perform web-to-web.Refer to Payment request   .

  Merchants generate a HTML form that redirects users to Gkash Unified Payment page for the user to ented their credit card details.

  

• Step 2 : Receive response through callbackurl

  A server-to-server HTTP payment status notification will respond to the merchant.

• Step 3 : Pre-Authorization Complete

  This step is to finalized sales amount for pre-authroized transaction.

  Merchant need to perform host-to-host(server-to-server) by inserting the previous pre-auth transaction POID as request parameters.Refer to Payment request (Host-to-host)