To unassign multiple products at one time:
1. Under the Assigned Products tab, select all the products that you want to take off BackOrder.
2. Click on Bulk Unassign action to remove those products from the app in one go.
3. A pop-up message will display when you click on the Unassign action as the app will no longer control the product inventory. Please note that the options are optional:
(1) Track inventory of the product – let BigCommerce track inventory of the product.
(2) Make the product not purchasable on the online store – disable the product on your online store.
If you do not choose either of the options, your unassigned products’ inventory will remain untracked. And the purchasbility status will remain the same.