Once you got your keys, Go to
Admin Panel -> Payments & Ads -> Payment Configuration, find Configure Aamarpay Payment Method, and edit the following options:
Select Test mode Choose the mode your application is using, for testing use the SandBox mode Test or Live .
Aamarpay Store Id – Your Aamarpay Store Id.
Aamarpay Signature Key – Your Aamarpay Signature Key.
Note
You can activate and deactivate your app by setting the variable ShowAamarPay.