Download WHMCS FastSwiff plugin
Ensure you have the latest version of WHMCS installed.
Download the zip of this repo.
Upload the contents of the repo to your WHMCS Installation directory (content of module folder goes in module folder).
Log into WHMCS as administrator.
Navigate to Setup->Payments->Payment Gateways.
Choose FastSwiff in the Activate dropdown and Activate it
Configure module with the following detail that you will get from the FastSwiff Click here
Fill the MID , Authentication Key & Authentication Token.
Choose if you are using test mode or live mode.
Click 'Save Changes'.
For Webhook call : Add displayed URL in FastSwiff Account -> Setting ->WebHook Url.
Configure module with the following detail that you will get from the FastSwiff Click here
