1) Open the Shopify app in your payever account
Choose the payment options you want to offer to your customers.
2) Install the payment options in Shopify
You need to install every payment option separately in your Shopify store or you just install one solution that offers all payment options.
3) Enter your API keys
In your Shopify account go to Settings, then Payments and choose the payever payment option you want to install under Alternative payments. Enter the API keys from your payever account.