Platon Payment Gateway for Shopify

Connection procedure:

1. Install the "Platon: Control Panel" app (contact at dev@trademinister.de to get the link)
2. Install the gateway via the link from the "Platon: Control Panel" app
   
3. Select the gateway (Settings - Payment providers - Alternative payments)
   
4. Enter the Shopify account name and password to access the payment gateway (/admin/settings/payments)
   
5. In the app, enter the gateway access password (item 2), merchantAccount, and SecretKey received from Platon support (/admin/apps)
   
   
6. Write a letter to Platon support with the following text: "Set the callback_url for the store <store url> - https://platon.trademinister.net/callback, method - POST"