Skip to content
chipmonitor

Blog

How to review a component PCN before approving a change

Match the notice to exact approved parts, identify the first affected shipment, and assign evidence and sign-off before changing the approved supply record.

These guides compare sourcing signals. They do not guarantee supplier inventory, price, authenticity, or delivery.

By: Chip Monitor Editorial · ·

Find the parts and builds the notice can actually affect

Read a product change notification (PCN) against your approved manufacturer part list. Match the full ordering numbers in the notice, map them to assemblies and open purchase orders, and record the projected first changed shipment separately from the notice date. Assign a disposition owner before assuming the change is harmless or buying extra stock.

The description may say “assembly site transfer.” The immediate buyer question is which orders could arrive from the new site. Engineering may need qualification evidence or samples; incoming inspection may need to know which label or lot fields identify affected stock. Put each question next to the person who can answer it.

Record dates the team can act on

FieldWhat to capture
PCN ID and revisionLink to the original notice and keep superseded revisions identifiable
Affected orderable partExact MPN, approved vendor entry, assemblies and open POs
First changed shipmentSupplier's projected date and any earlier customer decision deadline
Required evidenceQualification summary, sample lot or approval record
DispositionAccept, qualify before acceptance, or hold pending clarification

TI's PCN page lists the product identification, anticipated impact, qualification information, sample availability and projected production shipment information its notifiable changes can include. If the notice is missing a date or a test result, ask the supplier instead of copying a date from an unrelated notice.

Keep overlap visible

An illustrative case: your next build uses 1,200 units; 800 already allocated units came from an approved pre-change lot. Open a decision for the remaining 400 units. Ask whether your open PO may contain pre- and post-change material and what identifies each at receipt. If engineering needs samples, schedule qualification against the build date rather than the notice date alone.

If the notice is a discontinuance rather than a process change, work from the supplier's final order and delivery dates. The component lifecycle monitoring guide explains how to track that separate decision.

Who this is for

This workflow is for engineering and purchasing teams reviewing an ordinary manufacturer notice. Contractual qualification or customer approval rules take precedence.

Sources