Our store is resolved via a custom domain name, and when we send our users to begin checkout on their cart we send them to this domain name. As they go through the checkout process, those that choose to use Shop Pay or another "Accelerated Payment" option are navigated to that payment provider's flow (e.g. shop.app) to enter their details. When they complete the process and are sent back to our store (where they will land on the "Order Completed" page), the provider sends them back via the "*.myshopify.com" base domain name, instead of via our custom domain name on which they began the checkout.
This presents two problems for us:
We have not been able to find any configuration options in the Shopify admin interface that control the domain name used when returning from Accelerated Payment flows. Is there anything else that can be done? I imagine that this may affect many customers who use both custom domain names and Acellerated Payments for their stores.
Thanks so much for any help!