You can add supplier products into sales channel by first configuring the supplier product file or manualy import supplier products into the supplier section.
To add supplier products into sales channels, please import the supplier products either via file upload or using a http feed. Once the supplier products are imported into Selro, please go to Supplier ->Supplier Products and click actions 'Add To Inventory'. If the supplier product is already in inventory, you will see a tag 'Link'.