Minimum stock is not one universal number
A product sold every day with a fortnight’s lead time needs more protection than one collected from a nearby supplier and sold monthly. Copying five or ten across the catalogue creates noise for some items and late warnings for others.
Begin with expected demand during lead time and add a safety amount for reasonable variation. Review it when sales patterns or supplier reliability change.
What does crossing the threshold mean?
With a level of ten, a movement from ten to nine enters the low-stock state. A later movement from nine to eight remains in that state and is not a new transition. This avoids an alert for every unit sold after the product is already low.
Once replenishment takes stock back above the level, a later reduction can produce a new crossing.
The alert does not make the buying decision
It cannot know available cash, case quantities, a forthcoming promotion or whether the supplier is delayed. Treat it as the start of a review: check the physical balance, recent movement, lead time and supplier terms, then decide how much to order.
If phone notifications are disabled, the stock-status report remains the place to inspect products below their threshold. A sound process should not rely on one push message.
