Q: How to do multiple suppliers per item?
A: If you'd like to use multiple suppliers per item, simply create another entry in Sku Grid for the same exact item with all of the same information. The only difference would be the supplier URL and supplier variation name (if applicable). When Sku Grid sees more than one supplier URL linked to the same marketplace and marketplace ID, it looks for the supplier URL that has the lowest price and is in stock. That will be the information that is used for the repricing of your item. Your item also will not be put OOS until all suppliers linked to the same marketplace item are all out of stock. So it's a way of keeping the best price and also keeping your item alive as long as possible.