Every shop has a gap between the stock the system shows and the stock on the shelf. Some of it is theft or damage, but most of it comes from small, repeated recording mistakes. These habits close the gap.
1. Scan, don't type
Typing product names or codes at the counter leads to selling the wrong item, which puts two products out at once. Use barcodes for every item, and print your own labels for products that have none.
2. Get units right
Buying by the carton and selling by the piece is a classic source of errors. Set up units with their conversion (for example 1 carton = 12 boxes = 144 pieces) so purchases and sales both convert into the same stock unit.
3. Receive against the purchase order
Count deliveries when they arrive and receive them against the purchase order. Short or damaged deliveries should be recorded then, not discovered at the next count.
4. Process returns properly
A return handed back over the counter without being recorded leaves the stock wrong. Record every return against the original sale so stock and refund follow the original line.
5. Write off damage and expiry on record
Broken, spoiled or expired goods should be entered as damaged stock or a stock adjustment with a reason, not simply thrown away. The reason shows patterns you can fix.
6. Count a little, often
Instead of one exhausting yearly count, count a few categories every week. Correct differences with a stock adjustment and look for the cause.
7. Limit who can change stock
Use roles and permissions so only trusted staff can adjust stock, delete sales or change prices, and keep an audit log of who did what.
Let the system do the arithmetic
Inventory management software that is part of the POS updates stock from every sale, purchase, return, transfer and write-off, so the only remaining job is recording things as they happen. Read more about setting reorder levels.