Manufacturing2 min read
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.
Industry · Manufacturing
Electronics manufacturing ERP for volatile supply chains
Electronics manufacturers manage BOMs with hundreds of components, many sourced from a handful of manufacturers through distributors whose stock changes daily. A single unavailable capacitor can stop a build, and an engineering change can ripple through dozens of assemblies.
- M01Manufacturing
- M02PLM / ECO
- M03Purchasing
- M04Inventory
- M05Quality
- M06Sales
Context
ERP in electronics
The ERP needs to handle approved manufacturer part numbers, engineering change discipline, serial-number genealogy and the reality that component availability, not production capacity, is usually the constraint.
01Operational challenges
What usually breaks before the ERP project starts
01
Component shortages
Builds stopped by one missing part, discovered only when kitting starts.
02
Alternate parts chaos
Approved alternates known to engineers but not recorded, so buyers cannot substitute safely.
03
Uncontrolled engineering changes
Revisions released on drawings without updating BOMs, stock or open orders.
04
Serial traceability for RMAs
Returned units cannot be traced back to component lots or test results.
02Core flows
How the ERP should handle each part of the business
- Sales flow
- Quotes for contract builds priced from current component costs including MOQ effects and attrition. Customer forecasts and firm orders drive planning separately.
- Procurement
- Internal part numbers map to approved manufacturer parts and distributors. Shortage reports run against all open builds, and buyers can see allowed alternates before placing orders.
- Inventory
- Components tracked by reel, lot and date code; moisture-sensitive devices with exposure tracking where required. Customer-consigned material kept separate from owned stock.
- Warehouse
- Kitting by build order with reel-level picking, partial reels returned to stock with remaining quantity recorded.
- Manufacturing
- Multi-level BOMs for PCB, sub-assembly and box build; routings for SMT, through-hole, test and final assembly; serial numbers assigned at the board or unit level.
- Accounting
- Build costs include component attrition, labour by line and test time. Excess and obsolete inventory reserves reviewed regularly given short component lifecycles.
- CRM
- Contract manufacturing customers managed with their forecasts, consigned material and NPI projects.
03Industry workflows
Workflows specific to electronics
01
ECO management
Engineering change orders define what changes, the effective point, and disposition of existing stock and WIP.
02
AVL and alternates
Approved vendor list per internal part, with alternates permitted per customer or product.
03
Clear-to-build check
Before a build is released, all components are confirmed available or on firm order in time.
04
RMA and repair
Returned serials traced to build, components and test data; repairs recorded against the unit history.
04 — Reporting
Reports that should come out of the system, not a spreadsheet
- Clear-to-build status by order
- Component shortages and expected arrival
- Excess and obsolete inventory by part
- First-pass yield by product and test station
- RMA rates by product and failure mode
- Build cost vs quote
05 — Compliance
Compliance considerations
RoHS and REACH declarations, conflict minerals reporting and, for some sectors, IPC workmanship standards or ISO 13485 for medical devices. Storing manufacturer compliance data against approved parts lets you answer customer declarations from the system.
Regulatory requirements vary by jurisdiction. We configure the system to support your obligations; confirm specific rules with your auditor or compliance advisor.
06 — Integrations
Systems the ERP needs to talk to
Component distributor APIs for price and availability, CAD/PLM for BOM import, test equipment for results, and pick-and-place machine data are the key integrations.
07AI opportunities
Where AI is genuinely useful here
Practical uses that sit on top of clean ERP data. None of them replace getting the core transactions right first.
01
BOM scrubbing
Match customer BOM lines to internal parts and manufacturer numbers, flagging ambiguous or obsolete components.
02
Datasheet extraction
Pull key parameters and compliance information from datasheets into part records.
03
Shortage risk alerts
Highlight single-source parts with declining distributor availability.
08ERP modules
Modules a typical deployment includes
- M01Manufacturing
- M02PLM / ECO
- M03Purchasing
- M04Inventory
- M05Quality
- M06Sales
- M07Repair
- M08Accounting
09Roadmap
Implementation roadmap
- 01
Part master clean-up
Internal parts mapped to manufacturer numbers and approved alternates.
- 02
BOM and ECO control
Revisioned BOMs and a working change process.
- 03
Planning and kitting
Clear-to-build checks and reel-level kitting.
- 04
Traceability and test
Serial genealogy, test results and RMA linkage.
10Common mistakes
Mistakes we see repeatedly
01
One part number per manufacturer part
Using manufacturer numbers as internal part numbers makes alternates unmanageable.
02
ECOs outside the system
Changes released by email leave stock and open builds on obsolete revisions.
03
No attrition allowance
Ignoring placement attrition creates shortages at the end of every build.
04
Serials added later
Retrofitting serial tracking after go-live is far harder than designing it in.
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FAQ
Frequently asked questions
Can we import BOMs from our CAD tool?
Yes. BOM exports can be imported with revision control, mapping lines to internal parts and flagging unknown components.
How do we manage consigned components?
Consigned stock is held in separate locations or with ownership tracking, so it is consumed for that customer's builds and excluded from your valuation.
Can we check distributor stock from the ERP?
Distributor APIs can be integrated to show price and availability while planning purchases.
Similar industries
Industries with related workflows
ManufacturingBOMs, routings, MRP, shop-floor control, costing and traceability for discrete and mixed-mode manufacturers.Metal FabricationJob-shop ERP for quoting, nesting-driven material planning, routings, heat numbers and job costing.Plastic ManufacturingERP for injection moulding and extrusion: resin and regrind, tooling, cavities, cycle times and scrap.
Next step
Builds stopped by missing parts?
We will look at your part master, BOMs and shortage process.