Four thousand items in one list is a search box. Arranged in the categories your shop already uses, it is a counter that keeps up.
Categories are usually treated as a reporting nicety, and their real value is at the counter: a POS screen grouped the way the shelves are lets a cashier find an item by memory of the shop rather than by spelling.
The reporting value comes afterwards and is worth having too — which group earns, which is dead, which is growing. Both work better when the categories mirror how you actually think about the stock rather than a standard someone else wrote.
Use the categories your staff already say out loud.
One category each, in bulk if the list is long.
The counter groups what it shows.
Which part of the shop is actually earning.
What you sell and how much of it you have. Stock moves as you bill and purchase rather than waiting for someone to update a register, and the items themselves carry the detail a bill needs: rate, tax slab, unit, and a code to scan.
Set the items up once and the rest of the app leans on them — the counter, the invoice, the order and every stock report read from the same list.
per year
From Growth
The list it organises and the counter it speeds up.
As many as your shop actually has sections. Categories that only exist for a report are rarely maintained.
Yes — bulk edit is there for exactly that.
Yes, the POS groups items by them, which is where they save the most time.
The cashier should find an item the way they would find it on the shelf.