- Log in to your Shopify account
- Go to “Settings”
- Go to “Payments”
- Click on “+ Add Payment Methods”
- Click on “Search by provider”
- Search for “Billwerk”
- Click on Billwerk
- Click on “Install”
- Click on “Install” after accepting the data-exchange
- On the Login-screen click on “Set up” private key manually
- Find the email you received from Flatpay, where you were also provided with an API key
- Insert it into the field here
- If you have not received your API key, please contact our customer service.
- Click “Connect”. You will come to a success-screen
- Click on “Activate” Select your payment-methods
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