Stock belongs to a location
Check whether the goods are at the branch making the sale. A business-wide quantity is useful for planning, but it does not mean every branch has those items on hand. Branch stock helps your staff give a more reliable answer.
Clear scope on the numbers
Use the selected branch when reading daily sales, low-stock information and supported reports. The combined view is useful to an owner; an individual view helps a manager act on their own location’s figures.
People belong to the right team
Assign branch managers and cashiers deliberately, and keep admin access with the people responsible for the wider business. Separate logins make it easier to understand who worked on a record instead of sharing one owner account across locations.