Why do I need to checkmark / enable "Mobile App" sales channel for all my products on the Shopify Admin Panel?
All products on your store must be marked visible on the Mobile App Sales Channel.
If not, users will not be able to checkout from the mobile app and will see an error message saying "Oops, there's some problem with your cart"
Steps to mark them visible for the Mobile App sales channel :
- Login to your Shopify admin panel
- Go to Products - Select all the Products on your store
- Click on Bulk actions - Make products available
- Select the Mobile App option and deselect any other sales channel
- Click on Make products available
Hope this article is useful :)