How to respond to customer inquiries: a four-part structure, response times, and 12 sample replies for email and chat
This is for anyone who answers customer questions for a small business, by email, website chat or WhatsApp. You get a four-part structure that works for almost any inquiry, how fast to reply on each channel, how email and chat replies should differ, 12 sample replies, and a checklist to run before you hit send.
Quick answer
To respond to a customer inquiry, answer the actual question in the first sentence, add the one detail they will need next, ask a single question or offer one next step, and close warmly. Reply in minutes on chat and within hours on email. Keep chat replies short and conversational; email replies can carry more detail, links and a sign-off.
What is the best way to respond to a customer inquiry?
Use four parts, in this order: answer, add, ask, close. The answer comes first because it is what the customer came for; everything else is there to move them one step forward.
1. Answer
The direct answer to the question they asked, in the first sentence. "Yes, we deliver to Pasir Ris, $8." Not "Thank you for reaching out to us regarding your inquiry."
2. Add
The one detail they will need next. If they asked the price, the next detail is usually availability or what is included.
3. Ask
One question or one offer that moves things forward: "Would Thursday or Friday suit?" Never two questions at once.
4. Close
A short, human ending. On chat, often nothing at all. On email, your name and how to reach you.
Here is the structure in a single chat reply: "Yes, the blue sofa is in stock (answer). It is $899 with free delivery in the city (add). Would you like to see it in the showroom this weekend (ask)?" Three sentences, and the customer knows exactly what to do next.
How quickly should you respond to a customer inquiry?
As fast as the channel suggests: minutes for chat and messaging, a few hours for email during business hours, and an acknowledgement at once if a full answer needs more time. Interest fades fast, and so do sales leads.
The best-known evidence is from a Harvard Business Review study. When the researchers audited 2,241 US companies with a test web inquiry, 37% replied within an hour, 24% took more than 24 hours and 23% never replied; the average among those that did reply within 30 days was 42 hours. In a separate analysis of 1.25 million leads, firms that tried to contact a lead within an hour were nearly seven times as likely to qualify it as firms that waited even an hour longer.
| Channel | Our recommended first reply | Why |
|---|---|---|
| WhatsApp or SMS | Under 5 minutes in opening hours | Customers message several businesses and buy from the first useful answer |
| Website live chat | Under 1 minute | The visitor is on your page now and will leave |
| Same business day, ideally within 4 hours | Email feels slower, but a next-day reply often loses the sale | |
| Social media comments and DMs | Within a few hours | Public questions are read by other buyers |
| After hours, any channel | An honest auto-reply now, a full answer when you open | Silence reads as closed or careless |
These targets are our recommendations, not an industry standard. Measure your own first-response time before you set one; our guide to first response time shows how.
How should an email reply differ from a chat reply?
A chat reply is one short message that sounds like talking, answering one question at a time. An email reply can cover several points, include links and attachments, and needs a subject line and sign-off. The four-part structure is the same; the length is not.
| Chat (WhatsApp, live chat) | ||
|---|---|---|
| Length | One to three sentences | One short paragraph per point |
| Greeting | "Hi Sam" or none | "Hi Sam," |
| Several questions | Answer the main one, then the next in a follow-up message | Answer all, one per paragraph or numbered |
| Links | One at most | As many as useful, with labels |
| Tone | Spoken, contractions fine | Friendly but complete |
| Ending | A question or nothing | Next step, name, contact details |
| Common mistake | Pasting an email into chat | Burying the answer in paragraph three |
12 sample replies to common customer inquiries
These are illustrative; swap in your details. Each follows answer, add, ask.
For harder situations, see how to say no to a customer politely, complaint response templates and answering price questions when you do not publish prices.
A checklist before you hit send
- Does the first sentence answer the question they actually asked?
- Is every fact correct today: price, stock, dates, policy?
- Is there exactly one next step or question?
- Would it fit on one phone screen (chat) or be read in under a minute (email)?
- Is it in the customer's language and roughly their tone?
- Have you promised anything you cannot check, such as a delivery date?
- If you could not answer, did you say when you will?
What should you do when inquiries arrive faster than you can answer?
First save your best answers as quick replies or email templates; the WhatsApp Business app has quick replies and away messages built in. Then set an honest after-hours message. If that still is not enough, an AI agent can answer routine inquiries from your own content and pass the rest to you.
ReplyKit does that for WhatsApp and website chat, not email. It answers from your website, PDFs, price lists and Q&A pairs, follows the answer-first pattern above, replies in over 30 languages, and, when the answer is not in its knowledge, says so and hands the chat to you instead of guessing. Each unanswered question is listed so you can teach the answer once. You can take over any chat in one click. On WhatsApp it connects through Quick Connect, an unofficial QR pairing that Meta does not sanction, so a number can be restricted; pressing Connect after one plain notice is your acceptance of section 3 of our terms. If most of your inquiries come by email or phone, a help desk or an answering service fits better; see help desk software for small business. If they come by chat, try ReplyKit free for 7 days; plans start at $29 a month.
Frequently asked questions
How do you respond to a customer inquiry professionally?
Answer the question in the first sentence, add the detail they will need next, offer one clear next step, and close politely. Professional means accurate, fast and easy to act on, not long or formal.
How quickly should you respond to customer inquiries?
Within minutes on chat and messaging, the same business day on email, and with an immediate acknowledgement after hours. Research published in Harvard Business Review found many firms took far longer, and that slow responses sharply cut the chance of qualifying a lead.
What is a good sample response to a customer inquiry?
For a price question: "A full service is $120 and takes about 90 minutes, including the filter change. Would you like a time this week?" It answers, adds one useful detail and asks one question.
Should I answer customer inquiries by email or chat?
Answer on the channel the customer used. Chat suits quick questions and fast decisions; email suits detailed answers, documents and anything that needs a record. Keep chat replies short and email replies complete.
How do I respond to an inquiry when I do not know the answer?
Say so, say what you are doing to find out, and give a time you will reply by, then keep that promise. Guessing and correcting later costs more trust than a short wait.
How do I handle a large volume of customer inquiries?
Save your best answers as templates, set an honest after-hours reply, and group similar questions into a public FAQ. If chat volume is still too high, an AI agent can answer routine questions and hand the rest to you.
Answer the routine questions in seconds, every hour
ReplyKit replies from your own content on WhatsApp and website chat, and hands you the rest. 7-day free trial, no credit card needed.
Sources and further reading
- WhatsApp Business app features · quick replies and away messages in the free app
- Harvard Business Review, The Short Life of Online Sales Leads (Oldroyd, McElheran, Elkington, 2011) · audit of 2,241 US firms' response times; within-an-hour contact made qualification nearly seven times as likely
ReplyKit is an independent product and is not affiliated with or endorsed by Meta or WhatsApp. Prices for other vendors and payment providers are taken from their public pages as checked in October 2026 and may change. This article is general guidance, not legal advice.