Feature Request: Map order Shopify Sales Channel to Customer Group and Warehouse

We have a lot of order on Shopify that comes from different Sales Channel like :

Etsy
Amazon
Online Store
Walmart

We would like the data to be accurate in ERPNExt bout customers and fetch from the good warehouse.

We would need to be able to Map Shopify Sales Channel to Customer Group and Warehoouse.

Thank you!

No files, tests, or entry points are named. Start by locating the Shopify order-import handling and the ERPNext customer-group and warehouse assignment logic, then determine how sales channels are represented; done means each listed Shopify channel can map to the intended customer group and warehouse with accurate imported orders.

Written by the indexing model from the issue text.