Shelly / Guide
Shelly guide

Operations: reorder list and roster

The two daily jobs that most affect sales and cost: what to order and who to roster.

At a glance

How it works

  1. Demand μ and variability σ come from the last 28 days.
  2. On-hand stock is estimated as the last physical count minus sales since that count.
  3. Suggested order = order-up-to − on hand, only when on hand is below the reorder point.

Method & formulas

Safety stock
z × σ × √(L + R), with z = 1.65 (≈95% service), L = lead time, R = review period
Reorder point
μ × (L + R) + safety stock
Roster hours
max(forecast sales ÷ sales-per-labour-hour, minimum hours)

How to read it

Limits & safeguards

Ask Shelly

What do I need to order?Should I order milk?How many hours should I roster?

Type or say these in the chat on the main page.

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