Add product to quote, if he has zero stock qty

Question

How i can add product (for example with 10 qty) to quote if this product has 0 stock qty.

Answer 1

You can enable backorders for this product. To reach this you should make product qty - 0, click on the Advanced Inventory, set Out-of-Stock Threshold to your needed qty, and set Backorders to Allow Qty Bellow 0

In case you place the order with 10 qty of this product, product's Salable Quantity will be -10.