A customer asks whether a bicycle tyre is available. The shelf is empty, but a delivery is expected next week. “It should be back soon” feels helpful until the delivery moves and nobody remembers the promise.
An honest reply needs three things: the fact you know, a useful choice, and a next action your team can keep.
Say what is unavailable before offering anything else
Start directly. “That tyre is out of stock today” is kinder than making the customer ask twice. Acknowledge urgency, but do not bury the fact under an apology.
- 1CheckUse the source that owns stock.
- 2SayState what is unavailable now.
- 3OfferGive a real alternative or verified restock path.
- 4RecordSave the customer's chosen next action.
WhatsApp's guide to personalized customer interactions recommends useful catalog details and quick replies for recurring questions, including out-of-stock updates. It suggests one clear answer and one specific next step.
A practical first reply could be:
That tyre is out of stock today. I can check a similar puncture-resistant option we have now, or confirm whether the next supplier delivery has a reliable date. Which would help more?
This is specific without pretending the alternative fits or that the delivery is certain.
Check the source that actually knows
Check the system or person responsible for stock. An old spreadsheet is not evidence if the last unit sold this morning. The source might be the shelf and purchasing notebook or an inventory platform. Name an owner for unclear cases.

| Stock evidence | Safe customer reply | Team action | Avoid |
|---|---|---|---|
| Item physically or digitally confirmed | Confirm availability and the next purchase step | Reserve only if your process supports it | “We have it” based on memory |
| Suitable alternative confirmed | Explain the relevant difference and ask permission to share it | Check fit, price and availability | Calling a different product identical |
| Restock date confirmed by the source | Give the date with a careful qualifier | Record the source and review if it changes | Turning an estimate into a guarantee |
| No reliable date | Say the date is not confirmed | Offer an optional one-time stock alert | “Probably next week” |
| Customer already ordered | Explain the issue early and offer real options under your terms | Give the case a named owner | Treating it like a new enquiry |
Give the customer a real choice
An alternative is useful only when someone has checked it. Do not swap colour, size, compatibility or price silently. Say what is different: “The blue model is available now and costs the same, but its battery lasts less.” Then let the customer decide.
If a restock is verified, ask whether the customer wants to wait. If it is not verified, offer a notification instead of a promise. Get permission for that specific alert, send it once, and respect a stop request. The current WhatsApp Business Messaging Policy requires accurate business information, appropriate permission and a clear way to stop communications.
When payment or an order already exists, move the conversation out of the casual sales queue. Explain what changed and offer only remedies your business can actually provide under its terms and applicable law. A shared WhatsApp channel helps the team see the conversation, but it does not decide the customer's rights.
Keep the promise visible to the whole team
Record the chosen next action: alternative requested, delivery date to verify, one-time alert approved, or human follow-up required. A shared inbox shows ownership, while customer records keep the choice beside the conversation.
Use a short internal note such as “Waiting for confirmed supplier date; do not promise Tuesday.” That saves the next colleague from rebuilding the story. If the date changes, contact affected customers before they have to chase you.
Let automation draft without inventing stock
AI assistance can classify the question or draft a calm reply. It should not create an availability claim from general product knowledge. Require a current stock source before an automatic answer. When the source is missing, the safe action is to assign the conversation to a person.
An automation workflow can route “out of stock” replies, pause promotional follow-ups, and create a reminder for the owner. Keep the human boundary explicit. Outside the platform's customer-service window, the WhatsApp policy requires an approved message template; automation should not work around that rule.
The goal is not to turn every unavailable item into a sale. It is to leave the customer with a truthful answer and a next step that will still make sense tomorrow.
Frequently Asked Questions
What should I say when I do not know the restock date?
Say that no reliable date is confirmed. Offer to check a real source or ask permission for one stock alert. Do not convert a supplier estimate into a promise.
Should I offer a substitute immediately?
Only after confirming that it is available and understanding the important differences. State those differences plainly, including price or compatibility, and let the customer choose.
Can an AI agent answer stock questions automatically?
Yes, when it can read a current approved stock source and the reply stays within your rules. If availability is stale, missing or disputed, route the conversation to a person rather than guessing.
Want help applying this guide?Ask the DripTell team
From reading to action
Want help applying this to your business?
Share your details. We will read the article you are on and start with a useful answer for your team.
DripTell Editorial
Practical guidance reviewed by the DripTell product and customer workflow team.
See how DripTell checks product claims, uses primary sources and handles corrections.
Editorial and source policy







