First you need to obtain your Adyen API credentials:
After creating an account, you will need to obtain your Adyen API credentials, including your API key, merchant account, and API endpoint.
https://docs.adyen.com/online-payments/api-only
Configure Adyen in FlowTrack:
1. Log in to your FlowTrack account and navigate to the "Settings" section and select integration option. Now select Adyen as your payment gateway.
2. Enter your Adyen API credentials here. Save these credentials and done.