WhatsApp Business and Instagram Auto-Replies That Help
11 min read
A WhatsApp Business auto reply or an Instagram auto-reply is free, takes twenty minutes to set up, and stops messages from sitting unanswered overnight. This lesson covers the built-in tools on both, what to write in them, and Meta's new AI agent.
For a lot of local businesses, the front door is a DM. Salons, restaurants, contractors, tutors, clinics: customers message where they already are, at the hour they think of it, and they expect a sign of life. You can give them one without paying for a chatbot platform.
WhatsApp Business app: the free features
The WhatsApp Business app is a separate free download from regular WhatsApp. Move your business number to it and you get:
- Greeting message. Sent automatically when someone writes for the first time, or after 14 days of silence.
- Away message. Sent outside your business hours or whenever you switch it on.
- Quick replies. Saved answers you trigger by typing a slash and a shortcut, like /hours or /parking.
- Labels. Coloured tags for conversations: new customer, waiting on payment, booked, follow up.
- Catalog and business profile. Your hours, address, website and products, visible without anyone asking.
Skip the paid WhatsApp API platforms you'll see advertised. They're built for businesses sending thousands of automated messages. The free app covers a small team.
Instagram and Messenger: Meta Business Suite
Meta Business Suite is free and handles Instagram DMs and Facebook Messenger in one inbox, on desktop or phone. Under Inbox, then Automations, you'll find:
- Instant reply. Fires on the first message of a new conversation.
- Away message. Runs on a schedule you set, so evenings and weekends are covered and it switches itself off.
- Frequently asked questions. Up to four tappable questions that appear in the chat, each with a saved answer.
- Saved replies. Your quick answers, inserted by hand.
Four FAQ buttons sounds small. Pick them from your real top ten and they absorb a big share of first messages: hours, prices, booking, location.
What to write in them
Most auto-replies are bad in the same way: "Thank you for contacting us. We will get back to you as soon as possible." It says nothing and promises nothing.
A useful auto-reply does three things. It says when a human will answer, with a real time. It answers the most likely question before it's asked. And it tells the customer what to send so the first human reply can solve the problem.
Here is my support brief:
[PASTE BRIEF]
Write these for my [WHATSAPP BUSINESS / INSTAGRAM] account:
1. A greeting message for first-time contacts, under 50 words.
Include our hours and the link to our FAQ: [LINK]
2. An away message for outside business hours, under 50 words.
It must say when we will reply ("by 10 a.m. the next
business day") and what details to send so we can help
fast: [WHAT YOU NEED, e.g. address, photo of the issue]
3. Eight quick replies for these questions, each under
60 words with a shortcut name: [PASTE TOP QUESTIONS]
4. Four FAQ button labels under 30 characters, each with a
two-sentence answer.
Our voice, plain words. No emoji unless my brief uses them.
Do not promise anything that is not in the brief.Here's what good looks like for an away message: "Hi, it's Marco's Plumbing. We're closed until 8 a.m. If water is actively leaking, call 519-555-0142 now. Otherwise send your address and a photo, and we'll reply first thing." A customer reading that at 11 p.m. knows what happens next and goes to bed.
For a deeper set of templates in your voice, see Suggested Replies for Customer Service.
Meta's AI agent: what it is and whether to switch it on
In 2026 Meta began rolling out an AI agent inside the WhatsApp Business app, called Business AI in some markets and Meta Business Agent in others. If you've seen a notice in the app offering three modes (write your own replies, get AI suggestions you approve, or let the AI agent respond on its own), that's this feature. It's available to eligible businesses in select markets, with more promised, so you may not have it yet.
According to Meta's own description, it learns from your business profile, website, catalog and past chats, answers common questions around the clock, and hands conversations to you on topics you flag.
Our advice, in order:
- Start in suggestions mode. The AI drafts, you tap send. You see every word, and you learn what it gets right.
- Read a week of suggestions before trusting it. Rewrite the ones that sound wrong. The tool learns from your edits.
- If you move to full auto, restrict it. New conversations only, flagged topics go to you: prices not on your list, refunds, complaints, anything medical or legal.
- Check the chat list daily for the first month. The Air Canada principle from Chapter 1 applies here too. What the agent says, you said.
A privacy note. An AI agent that reads customer chats is processing personal information. Read what Meta says about how those conversations are used, and if you're in a regulated field such as health or law, leave it off until you've had advice.
Keep the channels from multiplying
Every channel you open is a place a message can die. If you can't check Facebook Messenger daily, set its away message to run all the time and point people to the channel you do watch: "We don't monitor this inbox. Message us on WhatsApp at [NUMBER] or email [ADDRESS] and you'll hear back the same day." One channel answered well beats four answered badly.
Where this breaks
Auto-replies set a clock. "We'll reply by 10 a.m." is a promise, and breaking it is worse than having said nothing. Write the time you can hit on your worst day, not your best. The next lesson is about choosing that number.
Try it now
Set up two things today: an away message with a real reply time, and your four FAQ buttons or four quick replies. Then message your own business from a friend's phone after hours and read what arrives. If it wouldn't reassure you, rewrite it.