The short answer
Record each change, its revision, affected components and approval status. Assess cost, schedule, tooling and filling-line effects before authorizing production with a revised specification.
A change that looks cosmetic can affect other parts of the pack. Moving a label panel may require new artwork, while changing a closure can alter overall height, sealing or equipment setup.
Describe the difference precisely
Replace vague instructions with a marked drawing, revised artwork or an annotated sample. Identify what remains unchanged and which existing approvals are no longer valid. Use one current specification across sales, engineering and inspection.
Close the approval loop
Ask the supplier to confirm feasibility and commercial effects. Decide whether a new sample or line trial is required. Archive superseded files so they are not accidentally used for printing, tooling or batch inspection.
Procurement checklist
- Assign a unique revision and date.
- Identify all affected components.
- Confirm cost and schedule effects.
- Repeat relevant fit or process tests.
- Release one approved file set for production.
Common question
Can a change be approved through a photograph alone?
A photograph can explain intent but may not define dimensions, colour or acceptance limits. Use it alongside controlled files and written approval appropriate to the change.