A product group is a tool for catalog separation for users. 

The case:

You have items that are available to order only from the Head office, and you have products that are available for other locations. In this case, you should use Product groups - Head office and General. The group Head office will be available only for an office manager or admin from the Head office, and the General group will be open for all the users.
To enable the function of product groups, please contact our Support Team by chat in-app or by support@precoro.com.

1.  In the Supplier management menu, you can see the tab Product GroupsOpen it, and press the button 'Add group,'  put the group name and save it.
2. Find your catalog
here and assign some products to one of the groups.

- press Show groups, then press Edit on some of the product

3. Set up available groups for the users.