Unusable scrap
Loss that cannot be used in production and is not retained as reusable inventory.
ERP Guides
Production and costing guide
How to Track Production Scrap and Manage Its Cost
Recording scrap only as a total lost quantity does not show where or why it occurred. Link each record to its work order and operation, and classify reusable offcuts separately to assess the production-cost impact more consistently.
Recording flow
From scrap record to cost review
- 1
Production input
Identify the material issued to the job and its quantity basis.
- 2
Operation record
Link scrap to the process, machine or work center where it occurred.
- 3
Cause and disposition
Record cause, classification and reuse or disposal decision.
- 4
Cost review
Review the effect of scrap quantity on work-order and period costs.
Classification
Separate loss from reusable remnants
Not every excess material from production should be treated the same way. Classification keeps inventory records and cost interpretation accurate.
Reusable remnant
Material that can be used in another job once its dimensions and condition are identified, and should be tracked with a separate inventory movement.
Item pending quality review
An item not yet assigned a rework, acceptance or disposal decision. Do not close it as confirmed scrap before the decision is made.
Cost impact
Which records explain scrap cost?
Basic review framework
Scrap cost is interpreted using lost quantity, material value and cost scope together.
Scrap quantityRelevant material/production cost basisCost impact to review
Validate before interpretation
- Is scrap quantity linked to the correct work order and operation?
- Are units and valuation basis consistent?
- Has reusable remnant been separated from scrap?
- Are correction, return and approval records complete?
Variance review
Investigate recurring scrap by cause and operation
Total scrap quantity alone does not show which corrective action will help. Review records in comparable groups and base improvement decisions on evidence.
Material
Incoming quality, dimension or lot variation.
Method
Work instruction, setup or process parameter.
Machine and tooling
Equipment condition, maintenance or tool wear.
Measurement and recording
Missing measurement, wrong unit or recording time.
Frequently asked questions
What should be recorded when tracking production scrap?
Core fields include item or product code, quantity and unit, work order, operation, cause, timestamp and disposition. Add responsible team and approval information where needed.
Do scrap rate and scrap cost show the same thing?
No. Scrap rate expresses lost quantity against a defined base; scrap cost expresses the value and effect of that loss within a chosen cost scope. State the denominator, period and costing basis when comparing.
Which work order should scrap cost be assigned to?
For traceability, link scrap to the production order and operation where it occurred. If multiple orders or products are affected, document the allocation rule under company policy.
Is reusable cutting offcut considered scrap?
Not necessarily. Separate reusable, traceable offcuts from unusable loss. Incorrect classification can distort both scrap indicators and inventory balances.