4Seller supports users to convert single product to combination product.
Entry 1, Inventory - Single Product - Convert to Generate Combo Sku
Entry 2, Inventory - Combo Product - Edit - Convert to Generate Combo Sku
If there is an error, please follow the help below:
This item cannot be converted to a kit because it currently exists in the processing orders
This item cannot be converted to a kit because it cureently exists in the kit
This item cannot be converted to a kit because it currently exists in the active purchase order
This item cannot be converted to a kit because it currently exists in the active inbound/outbound order