Hi there,
Thanks for reaching out!
If you’re trying to integrate your Funnelish account with Shopify, please follow the steps outlined in this: Shopify Integration: Connect Your Store & Automate Orders
However, if you’re trying to connect your custom domain to Funnelish, please follow the steps here: Connect Your Shopify Domain
If you’re still experiencing issues or have any questions, feel free to reach out again. We’ll be happy to help!