A BOM can look complete while a release decision is still missing. The part may be obsolete, the available stock may not cover the build, or a suggested alternate may not have been qualified. A useful review connects the signal to evidence, an owner, and a disposition.
For each flagged part, record what changed, where the evidence came from, what the production impact is, who owns the next action, and whether the release can proceed.
Confirm lifecycle status from a dated source
Check whether the manufacturer lists the part as active, not recommended for new designs, obsolete, or end of life. Record the source and the date you checked it; lifecycle data can change.
Before release: Decide whether the status affects this product’s build horizon, service period, or redesign plan. A warning needs an owner and disposition, not just a color.
Review PCNs and other manufacturer notices
Look for product-change and discontinuance notices that apply to the exact manufacturer part number and revision. Confirm the affected date codes or ordering codes before treating a notice as applicable.
Before release: Attach the notice or source reference to the review and document whether the change affects form, fit, function, qualification, or supply timing.
Compare available stock with the actual build need
Inventory is a snapshot. Compare the reported quantity with planned build demand, yield, service spares, and other programs competing for the same stock. Confirm the distributor and retrieval time.
Before release: Identify which quantities are confirmed, which are estimates, and whether the source is authorized for your procurement policy.
Check lead time against the schedule buffer
Compare lead time with the date the parts must arrive, including purchasing, receiving inspection, and qualification time. A lead time that fits today may still leave no recovery margin.
Before release: Record the supplier’s stated lead time and date, the required-by date, and the contingency if the estimate slips.
Find parts with only one viable source
Count sources that can actually supply the required manufacturer part, package, region, and quantity. Multiple listings do not necessarily mean independent or qualified supply.
Before release: Decide whether a second source is required, whether buffer stock is justified, or whether the risk is accepted by an accountable owner.
Separate an alternate candidate from a qualified replacement
A catalog match is a candidate, not an approval. Check electrical limits, package and pinout, thermal behavior, firmware or mechanical dependencies, availability, and the evidence needed by your qualification process.
Before release: Show the qualification step and owner. Keep “search needed,” “under evaluation,” and “approved” as distinct states.
Record the decision, open actions, and monitoring plan
For every release-impacting item, capture the evidence, rationale, owner, approver, date, and disposition. If the team approves the part with a mitigation, define which future change should reopen the decision.
Before release: Review unresolved actions as a group. Then monitor the signals that could make an approved decision unsafe later.
REVIEW WORKSHEET
Make each risk actionable
Use the same short record for every flagged component so the review stays clear across engineering and sourcing.
| Record | What to write down |
|---|---|
| Signal | What changed, and which exact part or BOM is affected? |
| Evidence | Source, timestamp, quantity or status, and any uncertainty. |
| Impact | Build quantity, release date, service horizon, or qualification effect. |
| Action | Mitigation, owner, due date, and what counts as completion. |
| Disposition | Proceed, proceed with mitigation, hold, or escalate—with approver and rationale. |
| Monitor | What evidence change should trigger a new review? |
PUT THE CHECKLIST TO WORK
See what your BOM review surfaces.
Run the free BOM stress test for an initial view, or explore a full report as a separate one-time option.