Go to the menu and click Administration (in the upper left corner of the screen): (in the top right corner of the screen):
On the open admin panel click: 1. Reports - Inventory 2. Add
In the open window Create new inventory select: 1. The most convenient inventory method (all products, by workshops, by categories) 2. Next step: select a workshop or category.
In the window that opens, Inventory : 1. Enter the actual quantity of goods 2. Click Finish