- Install the WayForPay Payment Gateway app (visit dev@trademinister.de to get link)
- Install the gateway from the link in the WayForPay Payment Gateway app
- Select a gateway (Settings - Payment providers - Alternative payments)
- Enter your Shopify account name and password to access the payment gateway (/admin/settings/payments)
- In the stop, enter the password for access to the gateway (p. 2), MerchantAccount and SecretKey are removed from WayForPay (/admin/apps)

WayForPay Payment Gateway for Shopify
Connection order: