Build: 2_682, 9976.106
Build date:  2-May-17 Case 83960

In the Inventory module, an item’s reference margin(s) cannot be set to 100% unless it a non-inventory item. An item with a price based on a non-zero cost, cannot have a 100% margin. If you set an item’s reference margin (Ref) to 100, and the Non-Inventory check box is not selected, you will see this message window.

An item’s reference margins are set in the Inventory module, on the Pricing tab in the Pricing Levels pane.

To designate an item as non-inventory item, in the Inventory module, on the General tab, select the Non-inventory checkbox.