MRP Software
Material requirements planning software that calculates what to buy, what to make, and when - based on real BOMs, live inventory, and actual demand. Built for manufacturers outgrowing spreadsheets.
Most shops still plan material requirements in spreadsheets, and every phantom stockout or duplicate PO traces back to a stale cell. WorkCell runs MRP against your actual BOMs, work orders, and lot numbers, so planners stop reconciling tabs and start working exceptions.
Spreadsheet Math Breaks
One missed cell reference orders 10,000 bushings instead of 1,000, and without a real mrp system the error sits unnoticed until the PO closes.
Phantom Shortages Stop The Floor
Planners trust safety stock numbers the floor already pulled for a rush job, so production halts on parts that looked available two days earlier.
Lead Time Guesswork
Suppliers quote six weeks and ship in nine, and spreadsheet material requirements planning carries the old number into every cycle until the shortage lands.
Multi-Level BOM Explosion
Bills of material explode down to raw stock and purchased parts in one run, so changing a sub-assembly rolls up to every parent without re-keying quantities.
Demand-Driven Purchasing
Sales orders, forecasts, and min/max rules feed one signal into suggested POs grouped by supplier with lead time, MOQ, and on-hand already factored in.
Time-Phased Netting
The MRP run spreads demand across weekly buckets and subtracts on-hand, allocated, and in-transit quantities so planners see exactly when each shortage hits.
Safety Stock And Action Messages
Set safety stock and reorder points per item per location, then work a short list of expedite, cancel, and push-out exceptions instead of reading every row.
of top manufacturers still run planning on spreadsheets.
Aberdeen Group
of spreadsheets contain significant computational errors.
University of Hawaii
projected MRP software market size by 2035, up from $7.7B in 2026.
Business Research Insights
Inventory
MRP nets against real-time stock levels, lot records, and reorder points so every suggested PO reflects what's actually on the shelf.
Purchasing
MRP action messages flow directly into suggested purchase orders, grouped by supplier with lead times and MOQs already applied.
Production Planning & Scheduling
Planned work orders from MRP feed the finite scheduler so capacity constraints and material availability line up against the same plan.
What's the difference between MRP and ERP?
MRP is the planning engine that tells you what to buy and build and when. ERP wraps MRP with accounting, CRM, and HR, and most modern manufacturing mrp systems ship inside an ERP today.
Is there mrp software for small business shops still on spreadsheets?
Yes. WorkCell is priced and scoped for shops between QuickBooks and enterprise ERP, with a four to eight week rollout covering BOM cleanup, item master, and one parallel planning cycle.
How does material requirements planning actually reduce stockouts?
The MRP run nets on-hand, allocated, and in-transit against time-phased demand, then flags shortages before they hit the floor instead of after receiving logs the miss.