Tell a Buyer About a Schedule Slip With Evidence and a Recovery Plan

When a delivery milestone is at risk, silence consumes the buyer's options. Notify them once the risk is credible, even if the exact delay is not yet known. State the affected order, product, revision and milestone. Distinguish “we have a problem” from “the shipment will be six days late” until planning has verified the impact.

Use three columns internally

Write observed fact, expected effect and action owner. A material supplier's missed dispatch is a fact; a new arrival date may still be an estimate. Ask production which operations can continue and which are blocked. If partial shipment is possible, verify quantity, inspection and commercial acceptance before offering it.

Give the buyer a next update time and keep it. If the new date depends on a carrier or vendor, identify that dependency. Do not assign blame to an unnamed “supply chain issue” when a specific check is available.

Keep the updated schedule in the same controlled order record as the original commitment. Later, compare the actual sequence with the forecast and change the quoting assumption if the same bottleneck recurs. An honest delay note should improve the next quote, not just close the current email thread.

Worked example (illustrative)

A subcontractor misses a confirmed dispatch. The supplier tells the buyer which order and milestone are at risk, says the replacement arrival date is still being checked, and promises a specific next update. Planning separately tests whether unaffected parts can continue. The message avoids both silence and an invented new arrival date.

Source check

Checked 2026-09-28. NIST supply-chain guidance identifies delivery delays and shortages as disruptions to production schedules and recommends clear communication. The linked source supports this point only. The steps and worked example above are editorial guidance; they do not establish any supplier’s capability or guarantee a buyer response, order or delivery.

Evidence and use boundary

Editorial method reviewed: 2026-09-27. This article is an operational checklist, not a report of current market conditions or a claim about any particular factory, buyer, certification or delivery result. Check the current product and transaction records before acting.