Why you need one view of every location
When stock lives in separate spreadsheets, nobody can answer a simple question quickly. A single view changes how a team works.
The question nobody can answer fast
Which location has the stock right now? In many businesses, answering means opening several files and asking several people. By the time the answer arrives, it may already be out of date.
The problem is rarely a lack of effort. Information is kept where it is convenient for the person who records it, not where the person who needs it can find it.
What one view gives you
With every supply and every location in one place, a manager can see what is out of stock, what is running low and what is about to expire without asking anyone.
It also means transfers, orders and deliveries all update the same record, so the numbers stay consistent from one team to the next.
Start with the questions
Before choosing any tool, list the questions your team asks most often about stock. Those questions are the real requirements. If a system cannot answer them in seconds, it is not giving you visibility yet.