The quick answer
A reorder level is a decision trigger based on how quickly an item sells and how long replenishment takes. Setting every item to the same threshold ignores demand and supplier differences. Begin with a few fast-moving products and use observed records.
A low-stock alert helps identify attention needed; it does not automatically place a supplier order or guarantee availability. Confirm actual stock, pending deliveries and cash before buying more.
Before you begin
- Recent sales and stock-movement records for each item.
- Typical supplier lead time and minimum order quantity.
- Usable stock, open orders, cash constraints and any expiry risk.
See how the pieces connect
Demand
Estimate the item’s normal sales pace.
Lead time
Allow for the replenishment delay.
Buffer
Add a justified uncertainty allowance.
Action
Review the trigger and make a purchasing decision.
Work through the steps
Measure sales in consistent units
Use a recent representative period and separate unusual promotions or stockout days. Calculate average daily movement in the unit you actually stock. A box-based purchase rate cannot be compared directly with piece sales.
Measure supplier lead time
Record the elapsed time from ordering to usable receipt. Account for weekends, delivery schedules and common delays. Use observed performance rather than the shortest promise in a quotation.
Choose a practical buffer
Add safety stock based on demand variability and delay risk. Balance the buffer against cash, storage and expiry. A bigger buffer is not always better for slow-moving or short-life goods.
Calculate a starting trigger
A simple planning example is average daily demand times lead days plus a buffer. Use it as a starting decision rule, not a universal forecast. Confirm what stock quantity the application’s alert actually checks.
Review pending supply and purchasing constraints
Before ordering, inspect physical stock, held or unusable units, open orders and supplier minimums. Avoid duplicate orders triggered by an alert while replenishment is already on the way.
Review results regularly
Compare stockout incidents, excess stock and supplier changes. Adjust the trigger when evidence changes. Keep an owner responsible for acting on alerts instead of assuming the threshold manages purchasing by itself.
A worked example
Calculate a starting reorder trigger
Illustrative steady demand and replenishment assumptions; actual demand can vary.
| Input | Assumption | Planning effect |
|---|---|---|
| Average daily sales | 4 units | Demand basis |
| Replenishment lead time | 5 days | 20 units needed during lead time |
| Safety buffer | 8 units | Delay/demand allowance |
| Starting trigger | 20 + 8 | Review when usable stock reaches 28 units |
The 28-unit trigger prompts review. Decide the order quantity from demand, existing orders, minimums and cash; it is not automatically a 28-unit purchase.
Common mistakes to avoid
- Using identical thresholds for every product.
- Ignoring pending orders and creating duplicate replenishment.
- Counting expired or held goods as usable stock.
- Treating a low-stock notification as an automatic supplier order.
Questions you might have
Does the reorder level equal the order quantity?
No. The level triggers review. The amount ordered depends on the target coverage, pending supply, supplier minimums and constraints.
Can Dukanam help detect low stock?
Check the supported stock and alert features on current plans. Use them with reviewed records and a human purchasing decision.
Dukanam
A smart, low-cost choice for small-business GST billing
Dukanam brings billing, purchases, stock, customer balances, payments and reports together. It is built for Indian small businesses that want clear records without a complicated setup.
Best suited to shops that want connected everyday billing and bookkeeping, web and mobile access, and nine product languages. Choose the plan that includes the features you need.
GST-aware billing and preparation depend on your plan. Review records before filing on the GST portal; Dukanam does not directly submit GST returns, government e-invoices or e-way bills.
Current plans with GST preparation
- Advanced Plan₹299.00 per month
Check annual prices, limits, applicable taxes and checkout terms. Paid plans do not include a free trial.
Sources and further reading
Official rules and portal screens can change. Use the linked authority for the current requirements; the figures in our worked examples are illustrative.