WhatsApp auto reply and automation: a practical guide with recipes

A WhatsApp auto reply is a message your business sends automatically when something happens: someone subscribes, sends a keyword such as "price", or replies in a way that shows they are interested. On the official WhatsApp Business Platform you can automate replies inside the 24-hour customer service window. Outside it, including a welcome to a brand-new web subscriber, you must use a Meta-approved template.

That one rule explains most automations that fail silently. This guide covers the rules, how Buddy's automations work (the exact triggers, actions and branches), eight recipes you can copy, how to give people a route to a human, and what automated replies cost now that Meta charges for service messages.

What is a WhatsApp auto reply?

In practice, "auto reply" covers four jobs. Most businesses need all four before they need anything cleverer.

The free WhatsApp Business app has simple greeting and away messages for a single phone. Once you have a team or a subscriber list, you need automations on the WhatsApp Business Platform that react to what people say and update your audience data as they go. Our guide to WhatsApp marketing platforms compares the options in detail.

What rules apply to WhatsApp automation?

Four rules from Meta decide what an automation may send and when.

1. The 24-hour customer service window

Inside the window you can send free-form text. When it closes, Meta's own documentation is blunt: "you can only send pre-approved template messages." That applies to automations exactly as it applies to people. A keyword reply is fine, because the customer just wrote to you. A follow-up three days later is not, unless it uses an approved message template.

2. A clear escalation path to a human

The policy lists acceptable routes: an in-chat transfer to a human agent, a phone number, email, web support, an in-store visit or a support form. Every automation that answers customers should make one of these obvious.

3. Opt-outs must be honoured

The same policy says you must respect every request "to block, discontinue, or otherwise opt out of communications from you via WhatsApp", whether it arrives on WhatsApp or anywhere else. Automations must never keep messaging someone who has asked you to stop.

4. No general-purpose AI chatbots

From 15 January 2026, WhatsApp's business terms bar general-purpose AI chatbots, where an AI assistant is the main thing being offered, from the WhatsApp Business Solution (TechCrunch). Structured business automation, the kind in this guide, is not affected.

Why must a WhatsApp welcome message be a template?

When someone subscribes on your website, opt-in page or QR code, they have given you permission, but they have not messaged you. No customer service window is open. So the first message you send them, the welcome, has to be an approved template. Free text sent at that moment will not be delivered.

The good news is that a plain confirmation can often be a utility template. Meta's categorisation guidelines list "Confirm opt-in to receive messages on WhatsApp as a follow-up to opt-in collected via other channels" as a utility use case, with the example "Thanks for confirming opt-in! You'll now receive notifications via WhatsApp."

Keep it that way. The same guidelines say templates with mixed content, such as a utility message with a promotion inside, are categorised as marketing. That matters for three reasons: marketing templates are always charged, WhatsApp may hold back marketing templates from people who already get a lot of them (per-user limits), and WhatsApp "does not currently deliver marketing template messages to WhatsApp users with United States phone numbers". A welcome with a discount code may simply never reach a subscriber in New York.

How do Buddy automations work?

Every Buddy automation is a trigger followed by steps. You can build one as a simple list ("Quick") or on a visual canvas ("New flow"), where you drag steps, connect them and add if/else branches. Each automation can be switched between Active and Paused, and shows how many times it has run.

The three triggers

One detail worth knowing: a message that is exactly STOP, unsubscribe or opt out is handled by Buddy's consent system first. The person is unsubscribed, the opt-out is logged on your Consent page, and no automation runs on that message.

The steps

Buddy also includes three presets to start from: Welcome message, Keyword auto-reply (set up for "price") and Tag interested leads (adds an interested tag and notifies the team). Open one, adjust it and save.

Eight WhatsApp automation recipes you can build today

Each recipe below uses only Buddy's real triggers and steps. The businesses are hypothetical, but the set-ups work exactly as written once your number is connected and any templates are approved.

Recipe 1: Welcome every new subscriber

A bakery in Manchester puts a QR code on its boxes. Anyone who scans it and subscribes should get a confirmation straight away.

1. 1Create a utility template such as "Hi {{1}}, thanks for subscribing to Crumb & Co on WhatsApp. We'll send our weekend bakes every Friday. Reply STOP to unsubscribe." and wait for approval.
2. 2Create an automation with the trigger When someone subscribes.
3. 3Add Send a message, choose the approved template and set {{1}} to {name}.
4. 4Add Add a tag with the tag new-subscriber, so you can greet this group in your next WhatsNew.

Recipe 2: A two-step welcome series

A course creator in Lagos wants new subscribers to get a confirmation now and a useful free lesson two days later.

1. 1Trigger: When someone subscribes.
2. 2Send a message with your approved welcome template.
3. 3Wait 2,880 minutes (two days).
4. 4Send a message with a second approved template that links to the free lesson. Two days have passed, so free text would not deliver. If the second message promotes a paid course, expect Meta to treat it as marketing.

Recipe 3: Keyword auto-reply for your most common question

A gym in Dubai gets "price?" twenty times a day. The customer has just messaged, so the window is open and free text works.

1. 1Trigger: When a message comes in, keyword price.
2. 2Send a message as free text: "Thanks for asking! Monthly membership is on our site: [your link]. Want a free trial class? Reply TRIAL and one of our team will book you in."
3. 3Optional: Add a tag asked-price so you can follow up in a later WhatsNew.

Duplicate the automation for your next most common questions: hours, menu, delivery, link. Keep each keyword specific (see the mistakes section below).

Recipe 4: Tag interested leads and alert the team

A furniture shop in Mumbai sends a WhatsNew about a new collection. Anyone who replies with interest should reach a salesperson quickly.

1. 1Trigger: When a reply is categorized, category Interested.
2. 2Add a tag interested.
3. 3Notify the team with the title "Hot lead" and details such as "Replied to the autumn collection".
4. 4Optional: Send a message as free text: "Lovely! One of our team will message you shortly with sizes and prices."

Recipe 5: The human hand-off for questions

This is your escalation path in automation form. When someone asks a question, confirm a person will answer and tell the team.

1. 1Trigger: When a reply is categorized, category Question.
2. 2Send a message as free text: "Thanks for your question. A member of our team will reply here within two working hours. If it's urgent, call us on [number]."
3. 3Notify the team with the title "Customer question waiting".

Only promise a response time you can keep. The reply itself happens in your team inbox.

Recipe 6: Move buyers out of your sales audience

A skincare brand in São Paulo targets its launch offers at the tag interested. People who say they have bought should stop getting the offer and start getting customer care.

1. 1Trigger: When a reply is categorized, category Purchased.
2. 2Remove a tag interested.
3. 3Add a tag customer.
4. 4Send a message as free text: "Thank you for your order! Reply here if you have any questions about using it."

Recipe 7: Respect a "not now"

Someone who replies "maybe later" is telling you something. Take them out of the push, without unsubscribing them.

1. 1Trigger: When a reply is categorized, category Not now.
2. 2Remove a tag interested, so they drop out of the tag-targeted offer audience.
3. 3Add a tag not-now, so you can send this group something gentler, such as your monthly newsletter, later on.

Recipe 8: One flow that routes every message (canvas)

A salon in London wants a single flow that answers booking requests, fast-tracks VIP clients and leaves everything else for the team. Build it on the visual canvas.

1. 1Trigger: When a message comes in with the keyword left blank (every message).
2. 2Branch: message text contains book. Yes path: Send a message with the booking link. No path: go to the next branch.
3. 3Branch: has tag vip. Yes path: Notify the team with "VIP client messaged". No path: end.

How do you give customers a route to a human?

Meta's policy requires a prompt, clear and direct escalation path whenever you automate. In Buddy that usually means three things working together.

1. 1Say it in the message. Any automated answer should tell people how to reach a person: "Reply HUMAN", a phone number or a support email.
2. 2Catch it. Add a keyword automation for human (and agent, person) that uses Notify the team and replies with a realistic response time.
3. 3Answer it. Everyone on your team sees the conversation in the shared inbox and replies from the same number.

What do automated WhatsApp replies cost from 1 October 2026?

Until now, replies inside the customer service window were free, which made automated replies feel costless. That changes on 1 October 2026. Meta's pricing update says it "will charge on a per-message basis for service messages, consistent with how Meta charges for template messages", and utility templates sent inside the window become billable too, at the same rate. Messages sent in the 72-hour free entry point window after a Click-to-WhatsApp ad or a Facebook Page call-to-action stay free.

So every automated reply is now a line on your Meta bill. That doesn't make automation a bad idea, since an instant, accurate answer is usually worth far more than it costs, but it does reward tidy design:

• Answer in one message, not three.
• Avoid overlapping automations that reply to the same message twice.
• Use tags and team notifications (which cost nothing on Meta's side) for the sorting work, and send messages only when the customer benefits.
• Check where your costs come from in WhatsApp Manager, and read our breakdown of Meta's October 2026 pricing change.

Meta bills message fees directly to your own WhatsApp Business account. Buddy doesn't add a markup; Buddy's own plans are on the pricing page.

Common WhatsApp automation mistakes

WhatsApp automation without a chatbot: where AI fits

You don't need a chatbot to automate WhatsApp well. Think of good automation as a well-organised receptionist: rules built from triggers, tags and templates answer the predictable, route the rest and behave the same way every time.

Buddy uses AI in two narrow places today. When Buddy AI is enabled, it reads the intent of incoming replies for the When a reply is categorized trigger, which copes better with typos, slang and other languages than keyword rules do. And in the Inbox, Suggest a reply with AI drafts a short answer from the recent conversation, which a person reviews and sends. Buddy never lets AI send on its own. We explain the approach, and what is planned next, in our guide to WhatsApp AI agents.

Frequently asked questions