This article will show you how you can use Phorest to track the usage of professional/backbar inventory by staff members.
Video: Deduct Professional Products
Go to the Purchase screen and click the Professional button.
Scan the product, and you'll receive a prompt asking if you would like to deduct the product from your inventory/stock. Select Yes, then enter the quantity you would like to deduce from your inventory.
If you don't have a barcode scanner, you can click the Select button instead to manually search for and select a product from your list of inventory.