Read the market in three phases
Shortages do not arrive as a single event; they move through phases, and the right buyer move depends on which phase each line item is in. In the steady phase, the job is building optionality: alternate lists, a date-code policy, a screened broker bench. In the allocation-watch phase, the first signals appear — allocation notices, partial shipments, quotes valid for days instead of weeks. In the allocation phase, you are rationing: every purchase trades cost against line-down risk. The common mistake is applying one toolkit to all three phases. Buyers who push hard on price during allocation discover that leverage has inverted — the scarce asset is supply, not the purchase order. Buyers who wait for the allocation phase to start qualifying alternates discover that the bottleneck is engineering bandwidth, not purchasing. The playbook below assigns each move to the phase where it still works. Start with a simple triage rule: for each critical line item, know your coverage in weeks — stock on hand plus stock on order, divided by average weekly consumption. When that coverage shrinks toward the time you would need to qualify an alternate or open a new supply channel, act. Do not wait for a distributor to confirm what the trend already tells you.
- Label every critical line item each month: steady, allocation watch, or allocation.
- Track the coverage ratio per line item; act when it approaches your alternate-qualification lead time.
- In the watch phase, shift RFQs from price-first to supply-first: confirm availability before negotiating terms.
- Pre-authorize crisis pricing before the crisis: decide who can approve premiums so POs never wait on meetings.
Qualify alternates while the market is calm
An unqualified alternate is a wish, not a plan. While supply is steady, engineering has the bench time to evaluate second sources electrically, mechanically and thermally — and firmware teams can flag register-level differences before those differences become line stoppers. Qualification is a design activity; a shortage only reveals whether you did it. Keep the alternate list inside the BOM record, not in someone's inbox: the exact ordering codes, the differences that were accepted, and the test evidence behind the decision. Find alternative components safely covers the cross-reference discipline for picking candidates, and Alternative component review covers what a second set of eyes should verify before an alternate is released to production. Prioritize by pain: single-source silicon and long-lifecycle parts first, then connectors and passives. A line item with two qualified alternates from different makers is a fundamentally different asset from one with a 'possible' alternate nobody has tested — treat qualification status as part of the line item's identity.
- Attach at least two verified alternates to every single-source line item before the shortage starts.
- Record qualification evidence with the BOM: what was tested, what was accepted, what differs.
- Re-verify alternates after any datasheet revision — qualification is dated, not permanent.
- Confirm with your EMS partner that they can place the alternate without a deviation request.
Write your date code policy before you need it
Allocation markets push old stock back into circulation. Aged parts are not automatically unusable, but moisture-sensitive packages, batteries and shelf-life-limited materials need rules decided in calm weather: maximum acceptable age, re-baking requirements, and which categories get exceptions. The trap to avoid: accepting any date code in a panic, then discovering at incoming inspection that the solderability of old stock stops the very line the purchase was meant to save. Put the rule in writing before the panic: one policy line — the acceptable date-code window and its exceptions — referenced in every RFQ, so suppliers self-filter before they quote. The Date code guide covers how to read and interpret the markings. A written policy also protects the buyer from themselves. During allocation, purchasing teams sometimes approve aged stock verbally to keep lines running, and quality teams inherit the fallout. A policy turns that moment into a documented exception with a named approver instead of a quiet workaround.
- Publish a date-code policy: maximum age, exceptions, and who can approve a deviation.
- Require date codes on every quotation and packing list — no code, no acceptance.
- Flag moisture-sensitive parts: old date codes may need re-baking before assembly.
- Audit incoming stock against the policy; brokered lots get the strictest check.
Rewrite RFQs for allocation conditions
A shortage-era RFQ asks different questions. The price-first template that worked in calm markets gets deprioritized when distributors are triaging hundreds of requests. Lead with what the supplier needs to answer fast: exact ordering code, quantity with acceptable partials, delivery window, acceptable date-code range, and whether alternates from your pre-qualified list are acceptable. Add shortage-specific fields: acceptable substitute policy (factory-sealed only, or broker lots with inspection?), split-award tolerance (can two suppliers share the quantity?), and whether scheduled delivery beats a single drop. Each field removes one round-trip of email, and round-trips are the currency in which supply is lost. Shorten the RFQ's validity expectations on your side too. Ask suppliers to hold quotes for a defined window — and commit to answering inside it yourself. The mechanics of a clear RFQ are covered in How to write an RFQ that gets a useful answer; the shortage adds urgency fields, not different grammar.
- State the exact ordering code and whether pre-qualified alternates are acceptable.
- Ask for date codes and factory-sealed status up front, not after the quote arrives.
- Declare partial-shipment and split-award tolerance so suppliers can offer what they actually have.
- Set a decision deadline you will honor — fast yeses get priority in allocation queues.
Use brokers as a scalpel, not a lifeline
Independent distributors and brokers are a legitimate channel during allocation — and also where counterfeit, refurbished and misrepresented stock concentrates. The control is not avoiding brokers; it is grading them. Buy first from authorized channels, then from independents with documented quality systems, inspection capability and a returns policy that survives a dispute. Take a broker offer with no traceability paperwork as an illustration: the quoted discount evaporates the moment inspection fees, escrow costs or a rejected lot enter the picture. Demand the paper trail before the PO: the original manufacturer's certificate of conformance, lot and date codes traceable to the factory, and your right to independent inspection or return. No paperwork, no purchase — a rule that costs nothing in calm markets and everything in a crisis. Tie broker strategy to your lifecycle plan: allocation often precedes end-of-life exits, and a last-time-buy decision made with broker pricing in the background is a different decision from one made in the dark. Obsolescence planning for buyers covers the lifecycle side of the same coin.
- Rank sources: authorized first, then vetted independents with inspection and return rights.
- Demand traceability paperwork before the PO: certificate of conformance, lot and date codes tied to the factory.
- Reserve inspection or escrow for high-value or high-risk broker lots.
- Feed broker pricing into last-time-buy math — it changes the exit timing.
Frequently asked questions
Quick answers to the shortage questions buyers ask most.
- Q: What does "allocation" actually mean for my BOM? A: The manufacturer rations available output among customers instead of filling orders in full, so your line items ship partially or late regardless of when you ordered.
- Q: Should I stockpile when I hear shortage rumors? A: Stockpiling without a plan buys obsolescence risk; cover your qualification lead time first, then add buffer only on parts with stable long-term demand.
- Q: How do I know if an alternate is really qualified? A: If engineering has tested it electrically, mechanically and thermally on your board — with the evidence recorded — it is qualified; a datasheet comparison alone is not.
- Q: When is a broker lot too risky to accept? A: When the paperwork does not trace the lot to the factory, or the seller will not accept inspection or return terms — then the risk sits with you.
Manufacturer references
Use the latest guidance for the exact part and manufacturer when deciding acceptance criteria.