To chase an unconfirmed purchase order, establish which lines still lack a usable supplier commitment, send one precise request, and keep following those lines until their quantities, dates, and terms are resolved. A reply that says “received” clears up whether the order arrived. It does not tell planning when the material will arrive.
Start with the downloadable PO follow-up worksheet (Excel). It gives you a place to record the missing commitment, next action, and closure evidence without rebuilding the whole purchasing register.
Build the queue from missing commitments
Work at PO-line or delivery-schedule level. A ten-line order with nine confirmed lines should generate a request about the tenth, not a reminder asking the supplier to confirm everything again.
Collect the current approved PO revision, proof it was sent, supplier order reference, latest acknowledgement, and subsequent messages. Check the supplier portal or EDI response where relevant. A response can exist outside the mailbox you normally use.
For each unresolved line, record:
- PO number, revision, line, item and specification revision.
- Ordered quantity and unit of measure.
- Requested receipt date and destination.
- Supplier-confirmed quantity and date, if any.
- Exact missing answer or proposed difference.
- Buyer owner, supplier contact, response due time, and next action.
Keep “not received,” “received but not accepted,” “partially confirmed,” and “change proposed” separate. These need different messages. Microsoft’s vendor-collaboration documentation, for example, distinguishes acceptance, rejection, and suggested changes; its confirmation behavior also depends on configuration. Read the supplier response as well as the system status. Microsoft documentation.
Prioritize the decision deadline
Age alone is a weak priority rule. A recently issued critical line can matter more than an older replenishment order with ample cover.
Ask planning when the material is needed for use, how much usable stock remains, and when the last practical recovery option disappears. Include receipt, inspection, and internal movement time where relevant. Then distinguish the supplier response deadline from the required delivery date.
Choose the chase cadence with the team. For example, routine lines might get a first check after two working days, while a line approaching its transport booking cutoff gets same-day attention. These are operating choices, not universal standards. Escalate sooner when the remaining recovery window requires it.
Send a request the supplier can answer
Use the latest approved PO attachment or link, and ask for line-level answers. If the supplier has already confirmed seven lines, say so. Avoid creating uncertainty about which revision is current.
Subject: PO [number], revision [revision] — confirmation needed for lines [lines]
Please confirm the following by [date, time, time zone]:
Line [x]: [item], [quantity and unit], receipt at [site] by [date].
For each line, confirm the quantity and receipt date you can support.
If you are quoting a ship date, label it explicitly and state the origin.
Please identify any price, specification, or delivery-term differences.
We have already recorded confirmation for lines [lines].
If something is preventing acceptance, please state the blocker and
when you can provide a firm answer.
Check for a new response immediately before sending a scheduled reminder. Cancel obsolete chases when the supplier answers or a newer PO revision supersedes the request. Record a phone commitment in writing and ask the supplier to confirm the written record.
Establish who owes the next answer
A follow-up needs one owner on each side. The supplier contact who received the PO may not control production allocation. Ask that contact to obtain the answer or introduce the person who can, while retaining a single buyer owner for the request.
Distinguish supplier waiting time from internal waiting time. If the supplier needs a drawing release, credit clarification, or delivery-address correction from your team, record the internal owner and due time. Sending another supplier reminder will not remove that blocker. When the answer changes the order, use the approved revision process and explain which lines must be reconfirmed.
For every scheduled action, record what should happen if nobody answers. A routine reminder can go to the established supplier contact. An approaching production deadline may require the buyer to ask planning for a recovery decision. Commercial changes, substitutions, or a new supplier remain with the authorized decision maker.
Keep escalation messages short and complete: the material requirement, last credible commitment, missing fact, consequence by date, options already investigated, and the decision needed. “Please advise urgently” leaves the investigation to the next person.
Convert each reply into the right next action
A complete, matching confirmation can proceed through your normal authorized update process. A changed price, substitute item, reduced quantity, or late date needs a decision from the appropriate owner. Do not silently overwrite the request with the proposal.
Keep both the original requirement and proposed commitment visible. Ask only for missing details: “You confirmed 400 units for October 6; what quantity and date can you confirm for the remaining 600?” is more useful than restarting the entire conversation.
If the supplier cannot commit, record that explicitly and identify the next evidence point: a production-slot allocation, stock check, or logistics confirmation. “Checking internally” needs an owner and a promised return time.
Worked example: one PO, two different problems
In this illustrative example, a buyer orders 1,000 brackets for receipt on October 8. The supplier replies that 600 will ship on October 6 and the remainder is “to follow.”
The buyer first checks the route and receiving schedule; shipping on October 6 is not automatically receipt on October 8. Logistics confirms the first lot can arrive by October 8. Planning says 600 covers production until October 13.
The next request is now narrow: confirm receipt of the remaining 400 by October 13, or provide the earliest feasible date and quantity. The first lot has a recorded commitment. The remainder stays open. If the supplier proposes October 16, the buyer moves that line into a delivery recovery plan, with planning assessing alternatives.
The working record now has two schedules under the original line. Schedule one shows 600 confirmed for receipt October 8, with the supplier response and logistics assumption linked. Schedule two shows 400 requested for October 13, proposed for October 16, pending planning’s decision. Total scheduled quantity remains 1,000; there is no second order for the same balance.
Suppose the buyer asks for the remaining commitment at 9 a.m. Monday, due noon Tuesday, and the supplier answers at 3 p.m. Monday. Cancel Tuesday’s missing-answer reminder. If planning has not approved the later date, create an internal decision action instead. The supplier has answered; the underlying delivery problem still exists.
If planning approves October 16 because the production sequence can change, retain the approval and update the accepted schedule. If it cannot, retain the proposed date and pursue recovery. The confirmation work is resolved only when the line has an accepted commitment or another documented disposition, not when the supplier’s latest message arrives.
Handle the responses that do not fit a clean confirmation
The supplier says the order was never received. Verify the address or portal destination through the established contact, then resend the current revision with the original PO number. Label it as a retransmission to avoid creating a duplicate order. Record the new delivery evidence and ask whether the same requirement is still feasible.
The supplier confirms an old revision. Identify the changed lines and send the precise difference. Do not require reconfirmation of unchanged details unless your process calls for it. Preserve the old response as history and leave affected lines pending.
The supplier offers a date range. Capture the range, then ask whether the minimum needed quantity can be received by the planning cutoff. Do not choose the earliest date in the range as a firm promise. The PO date tracking guide explains how to retain both uncertainty and an actionable next checkpoint.
The PO has already shipped or arrived. Stop asking whether the supplier accepted it. Verify shipment or receipt evidence, reconcile the order and commercial details still unresolved, and transfer any remaining work to the appropriate owner. A received item can still have an unapproved price or missing certificate.
Two supplier contacts disagree. Retain both messages and ask the accountable supplier owner for a consolidated commitment. Do not select the more favorable answer. Record the contradiction as unresolved until the source of authority is clear.
Measure confirmed coverage without hiding the difficult lines
Define the population before reporting performance: active PO schedules issued during the period that your team requires suppliers to acknowledge. Count split schedules consistently and state whether cancelled lines are excluded. Keep the original issue time when a retransmission merely fixes failed delivery; separately record a material revision requiring a new response.
Report confirmed coverage as schedules with complete, accepted commitments divided by eligible schedules at the cutoff. Pair it with the number still open and their age. For example, 72 completed schedules out of 90 eligible is 80% coverage, with 18 unresolved. Eight reminders sent does not change that denominator.
Measure elapsed time from successful issuance to accepted commitment, stating whether you use calendar or working hours. Show supplier waiting and internal decision waiting separately. A median based only on completed work can improve while the hardest orders age, so always publish the open-age view beside it.
Close the missing-confirmation work properly
Close this task when every relevant line has an accepted commitment or a documented alternative disposition, the authorized records are updated, and any changed requirement has an owner’s decision attached. The PO itself may remain open until later receipt and invoice work finishes.
Use the confirmation checklist to review replies consistently. Measure outstanding lines and elapsed time to usable confirmation, alongside the reasons work remains blocked. Reminder count tells you what was sent; it does not tell you which orders became dependable.
Mandel’s purchase order management work follows this operational sequence: obtain the missing answer, reconcile the commitment, take authorized actions, and bring the buyer the decisions that remain.

