Manufacturing ERP Guide: BOMs, MRP, Shop Floor and Costing
A practical guide to manufacturing ERP: modelling BOMs and routings, making MRP trustworthy, shop-floor data capture, costing, quality and traceability.
Solution · Operations
Overview
In an ERP, manufacturing shares data with inventory, purchasing, sales and accounting, so material shortages, capacity and cost are visible as orders arrive.
01Typical problems
Jobs start before materials are confirmed.
Engineering changes not reflected in the system.
Overloaded machines and idle ones in the same week.
No actual-vs-standard by order.
02Capabilities
Sub-assemblies, kits, variants and by-products.
Operations with times, capacities and costs.
Demand-driven proposals for production and purchasing.
Operator interfaces for work orders, time and scrap.
Inspection points at receipt, in-process and final.
Material, labour and overhead with variance analysis.
03Workflow
Sales orders and forecasts create requirements.
MRP proposes manufacturing and purchase orders.
Orders released when materials are available.
Work orders tracked on the shop floor.
Output, scrap and costs recorded.
04 — Technical notes
Planning quality depends on data: accurate lead times, BOMs and stock. We recommend running MRP in recommendation mode first and reviewing proposals with planners before automating.
Costing configuration — standard versus actual, overhead absorption and scrap handling — should be agreed with finance, because it determines every margin report.
Where it applies
Services
Insights
A practical guide to manufacturing ERP: modelling BOMs and routings, making MRP trustworthy, shop-floor data capture, costing, quality and traceability.
A practical method for calculating ERP return on investment: which benefits to count, which to leave out, how to estimate costs honestly, and a worked example you can adapt.
Odoo 20 manufacturing changes for production teams: continuous production, MO Kanban, split orders, the single Produce button, shop floor and PLM updates.
FAQ
No. MRP proposes; planners decide. It removes manual calculation so planners focus on exceptions.
Yes, through work orders with time tracking on the shop floor.
Yes, with subcontracting flows that track materials sent and goods received.
Next step
We will map your production into an ERP model.