Separating Rework From Customer Changes in Job Reports

Internal rework and customer-requested changes both add effort, but they answer different business questions.

Written by Coby BirenbaumPublished Oct 19, 20262 min read

Illustrative photograph of a production manager reviewing job drawings at a workbench

Separating Rework From Customer Changes in Job Reports

Internal rework and customer-requested changes both add effort, but they answer different business questions. Keep their causes and approval status distinct. Combining them into one overrun category makes process improvement and commercial review harder.

Classify the event

Identify whether the original accepted requirement changed or was not met.
Record the affected assembly, operation, and supporting evidence.
Link approved scope changes to the relevant authorization.
Capture additional labor and material consistently in either case.

A comparison example

A hypothetical door is replaced because the customer changed the finish; another is replaced because it was machined incorrectly. Both use material and time. Only the second directly signals an execution problem against the original requirement.

Review separately

Use change history to improve scope and approval handling. Use rework history to investigate instructions, setup, materials, and quality controls.

Definitions and further reference

Intuit: job costing and cost records

How Millbase can help your shop

Bring job-cost reviews back to the recorded work

Use Millbase project tracking to keep a cabinet job and its sub-projects together, then compare estimates with recorded labour and material costs. Insights and reports help the team inspect the people and workstations behind a total and export supported results for the next review.

Ask the Millbase AI agent a question grounded in your workspace records. For example: “Compare this project’s estimated and actual labour, then break the logged hours down by workstation.” You can select a project or worker, ask follow-up questions, and request supported reports and CSV exports.

Check the date range, job scope, and recorded inputs before changing a quote. Keep the accounting treatment of overhead, tax, and revenue in the appropriate financial process; a shop-floor cost breakdown is only as complete as the inputs recorded.