Zelvorm Stock · feature
Exactly when to reorder and how much, with the safety stock worked out from how much demand and the supplier's lead time vary.
Safety stock covers the chance that demand and the supplier's lead time both vary: z × √(lead time × demand spread² + demand² × lead-time spread²), with z from your service level. The reorder point is the forecast over the lead time plus safety stock. When stock plus what's on order reaches it, Stock suggests ordering up to the lead time plus your review period plus safety stock, rounded up to the supplier's minimum and case pack. Each product page shows every step with its numbers, plus the cheapest batch size (EOQ).
How to use it
- 1Set each product's lead time, how much it varies, minimum order and case pack.
- 2Set your service level, review period, holding cost and order cost on Plan.
- 3Check Order now on the overview, or open a product for its full maths.
More from Zelvorm Stock
Purchase ordersDraft orders from the suggestions, one per supplier, send them, and mark them received to add the stock.Read more Cash plannerHow much money your reorders will need, week by week, for the next 13 weeks.Read more Promotions and seasonsTell Stock about a sale or a busy season and every forecast and reorder plan includes it.Read more