B2B sourcing tool · sample gate

Supplier sample approval checklist

Use this page before approving mass production. It converts a supplier sample into a controlled decision: approve, approve with conditions, retest, or reject.

Decision rule

A sample is not approved because it “looks okay”. It is approved only when specification, workmanship, packaging, labeling, documentation and deviation handling are all recorded.

ApproveMatches critical specs, no open safety/function defects, packaging confirmed.
Conditional approveMinor deviations accepted in writing with exact mass-production limits.
RetestUnclear measurements, missing evidence or revised supplier sample required.
RejectCritical function, safety, material, color, labeling or compliance failure.

Minimum evidence pack

  • Photos from front, back, side, close-up and packaging view.
  • Measurement sheet with tolerance notes and test method.
  • Material, finish, color and logo confirmation.
  • Supplier declaration of any deviation from the requested spec.
  • Buyer approval note with date, approver and conditions.

Approval checklist

  1. Identify the sample. Record supplier name, item code, revision, sample quantity, received date and whether it is hand-made, pilot-run or production-line sample.
  2. Compare against the agreed specification. Check dimensions, material, color, function, finish, accessories, documents and packaging against the purchase spec or drawing.
  3. Separate critical and cosmetic issues. Critical issues block approval; cosmetic issues need acceptance limits, photos and production control notes.
  4. Confirm packaging and labeling. Verify unit packing, carton mark, barcode, warning label, manual, inner protection and export carton strength if relevant.
  5. Ask for production-control proof. Request how the supplier will reproduce this sample: tooling, line setup, QC checkpoints, first-article inspection and final inspection plan.
  6. Write the decision. Use one sentence: “Approved for production”, “Approved only if…”, “Retest required because…”, or “Rejected because…”.
  7. Link to follow-up. If defects remain, create an owner/deadline/evidence line in the supplier corrective action tracker.

Copy-ready approval note

Sample decision: [approve / conditional approve / retest / reject]. Approved reference sample: [sample ID + date]. Open conditions: [list]. Supplier must confirm that mass production will match this approved sample and that any change requires written buyer approval before shipment.

Common failure signals

  • Supplier says “mass production will be better” but cannot provide a corrected sample.
  • Packaging is missing even though shipment damage risk is high.
  • Color/material mismatch is described as “normal tolerance” without a written range.
  • The sample is handmade while production will use a different process.