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Production Part Approval Process (PPAP)

A structured submission that proves a supplier can consistently meet customer engineering and quality requirements.

Definition and context

PPAP combines dimensional results, material records and process evidence for customer approval of production parts. It is common in automotive supply chains. Confirm submission requirements with the customer.

What a PPAP includes

Typical submissions contain design records, engineering change documents, DFMEA and PFMEA results, measurement system analysis, capability studies, and control plans.

Suppliers also provide samples and appearance approvals where applicable.

Maintaining PPAP compliance

Equipment moves, tooling changes or supplier changes may require notification and resubmission under the applicable rules. Confirm the submission level and customer-specific requirements rather than assuming every change needs the same package.

Where this term fits in the workflow

Production Part Approval Process (PPAP) is usually shown in the process control and risk.

Terms that help factories monitor variation, validate capability, and reduce risk before defects escape.

What is KaizenQ?

KaizenQ helps factory teams record inspection results, defect photos, and notes in one report shared with the office.

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Key takeaways

  • PPAP demonstrates a supplier’s readiness for serial production.
  • Process changes often require revalidation and updated submissions.

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