Dear Sergej,
Great question!
Yes, we can fully integrate with Shopify. For further info on that, please go here.
Please also find here, the processors that we can integrate directly in your wallee, so that you can accept payments in your Shopify shop.
Do not hesitate to get in touch with our team if you have a more specific question about your shop. info@wallee.com
Sincerely,
Dewi