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Display Name: String used for display when referring to the device
Merchant Account: Find on Adyen site. Settings > Merchant accounts
Environment:
Test for a Test Adyen account
Live for a Live Adyen account
API Key: Find on Adyen site. Developers > API credentials > pos_ws > Generate API key
Payment API Url and Checkout API Url: Find on Adyen site. Developers > API URLs
Note the prefix for the site
Build the payment URL based on this documentation https://docs.adyen.com/api-explorer/Payout/68/overview
https://{PREFIX}-pal-live.adyenpayments.com/
Build the checkout URL based on the documentation https://docs.adyen.com/api-explorer/Checkout/70/overview
https://{PREFIX}-checkout-live.adyenpayments.com/
Enabling Refunds
To enable refunds, the client must contact Adyen to change a setting. This is according to the Adyen documentation, https://docs.adyen.com/point-of-sale/basic-tapi-integration/refund-payment/unreferenced
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