Lifecycle resources
PCN / PDN Guidance
Read manufacturer notifications against exact ordering codes, project demand, and engineering approval requirements.
Identify the notice
A PCN announces a product or process change; a PDN announces discontinuation. Manufacturer wording and scope vary.
- Keep the original manufacturer notice, notice number, issue date, and revision.
- Read the effective date and affected product list before assigning a status.
- Do not treat every PCN as an EOL or PDN announcement.
Match the exact part
The same family can include ordering codes with different change scopes.
- Match the full ordering code, including suffix and packaging designation.
- Check related finished goods and BOM positions.
- Record any code that the notice does not clearly cover as unconfirmed.
Capture deadlines and supply exposure
Last-order, last-delivery, and change-effective dates serve different purposes.
- Record each date as stated in the manufacturer document.
- Compare deadlines with open orders, annual usage, and service demand.
- Confirm lead time and lot availability separately with the supplier.
Route engineering and quality checks
A change or proposed alternate may affect performance, qualification, or documentation.
- Identify affected package, process, electrical, software, and certification requirements.
- Request samples and evidence where project approval calls for them.
- Document the engineering decision before changing an approved BOM.
Close the action record
A notice is useful only when its owners and next actions are visible.
- Store the notice beside the affected part, project, owner, and next review date.
- Track last-time-buy, sourcing, and replacement actions separately.
- Recheck manufacturer updates before making final procurement commitments.
Need a project-specific review?
Send the complete ordering code, quantity, target date, and relevant documents so the procurement team can review the request.