How to Set Auto Reply in WhatsApp: All 4 Methods (2026)

Two minutes. That is all it takes to set your first auto reply on WhatsApp Business.

But most business owners stop at the default "Thank you for contacting us, we will get back to you soon" and never go further. That generic response costs customers — and for a Malaysian clinic, tuition center, or salon receiving 50+ WhatsApp messages a day, the built-in tools alone are not enough.

This guide covers every method for setting auto reply in WhatsApp: the free built-in features, personal WhatsApp workarounds, keyword-triggered replies, and the API-powered approach used by serious businesses.

What Is WhatsApp Auto Reply and Which Accounts Support It?

Most people assume all WhatsApp numbers work the same. They do not.

WhatsApp auto reply is an automated messaging feature that sends a pre-written or AI-generated response when a customer contacts your number, without manual action from your team. The built-in version is available on WhatsApp Business accounts only — personal WhatsApp numbers have no native auto reply. Meta reports that more than 50 million businesses worldwide use the WhatsApp Business app, with auto reply among the top three most-used features.

There are four distinct methods to set auto reply in WhatsApp:

The right method depends on how many messages you receive, how many different questions customers ask, and whether your business runs from a personal or dedicated WhatsApp Business number.

How Do You Set Auto Reply in the WhatsApp Business App?

This is where most businesses start — and for low-to-medium message volume, it covers the basics.

Setting auto reply in the WhatsApp Business app requires no additional software or cost. The app includes two free features: an Away Message (triggers outside your set business hours or when you toggle away mode) and a Greeting Message (triggers on first contact or after 14 days of inactivity). According to Meta's WhatsApp Business Help documentation, both features work on Android and iOS and require no active internet connection to trigger once configured.

To set up an Away Message:

1. Open WhatsApp Business. Tap the three dots (Android) or the Settings icon (iOS) in the top right.
2. Tap Business Tools, then Away Message.
3. Toggle on Send away message.
4. Tap the pencil icon to edit the message. Replace the default text with something specific: your business hours, a booking link, or an alternative contact.
5. Under Schedule, choose Outside Business Hours (recommended), Custom Schedule, or Always.
6. Under Recipients, select All, Anyone not in address book, or Anyone not in groups. Tap Save.

To set up a Greeting Message:

1. In Business Tools, tap Greeting Message.
2. Toggle on Send greeting message.
3. Edit the message to match your voice. A dental clinic might write: "Hi! Thanks for reaching out to Dr. Lim's Dental Centre. We'll respond shortly. To book an appointment, tap here: [link]."
4. Select Recipients and tap Save.

For a full walkthrough including how to write effective messages and configure the scheduling, see How to Set Up WhatsApp Business Auto Reply (Step-by-Step).

Can You Set Auto Reply on Personal WhatsApp Without a Business Account?

Short answer: barely, and only on Android.

Personal WhatsApp has no native auto reply feature. Android users can install third-party apps like AutoResponder for WA to intercept messages and send automated keyword-triggered replies. These apps require the phone to remain on with the app running in the background — they stop working when the device is off or the app is closed. iOS does not support this method due to Apple's app sandboxing. The free tier of AutoResponder for WA includes ads; the paid tier costs around RM8–RM15/month.

If you run your business from a personal number, the cleanest solution is switching to a free WhatsApp Business account. It takes under five minutes, keeps your existing number, and gives you the Away Message and Greeting Message features immediately.

If switching is not practical right now — for example, if your personal number is well-known to existing customers — the AutoResponder for WA app on Android handles keyword matching reasonably well for low-volume use. You define trigger words and replies, and the app responds automatically when a matching message arrives.

The limitation: as soon as you turn off your phone, auto replies stop. That is the fundamental problem with any device-dependent solution.

How Do You Set Up Keyword-Triggered Auto Replies in WhatsApp?

The standard WhatsApp Business app does not support keyword triggers. That is a deliberate product boundary.

Keyword-triggered auto replies in WhatsApp require either a third-party Android app (for personal or basic use) or the WhatsApp Business API accessed through a licensed BSP. The API version supports unlimited keyword triggers and conditional conversation flows that run on cloud servers 24/7 — not on your device. Third-party app keyword matching is case-sensitive on some platforms and depends entirely on the phone staying powered on.

On Android with a third-party app: Apps like AutoResponder for WA let you define keywords and matching replies. When a customer sends a message containing "price", they receive your pricing reply automatically. This works on both personal and WhatsApp Business numbers on Android.

On WhatsApp Business API: Your BSP or AI platform handles keyword routing server-side. Replies are instant regardless of your device status. You can build branching flows — customer sends "appointment", they receive a booking link; customer sends "complaint", the conversation flags to a manager.

Malaysian businesses commonly set these five triggers as a starting point:

• "price" or "harga" → pricing message with current rates
• "book" or "tempah" → booking link or calendar
• "location" or "alamat" → Google Maps link
• "hours" or "waktu" → operating hours
• "promotion" → current offers or packages

For a full comparison of tools that support keyword triggers in Malaysia, see Best WhatsApp Auto Reply App in Malaysia (2026).

What Are the Limits of WhatsApp Business Built-In Auto Reply?

Knowing where the ceiling is helps you decide when to move beyond the free tools.

The WhatsApp Business app supports exactly one Away Message and one Greeting Message — no keyword matching, no conditional branches, no ability to collect customer information during the automated reply, and no multi-step conversation flows. Every customer receives the same response regardless of what they asked. For businesses receiving 10–20 messages per day with simple inquiry types, this is sufficient. Beyond that threshold, the limitations become visible quickly.

In practice, the single-message ceiling shows up in these scenarios:

• A customer asks about pricing. Another asks about operating hours. A third wants to make a booking. All three receive the same "we'll get back to you" message.
• A new customer contacts you at 11 PM on a Sunday. The away message fires. But they had a specific question your message does not answer — so they message a competitor who does reply.
• Your staff returns Monday morning to 40+ unanswered messages, many from customers who have already moved on.

Does this sound like your current setup? See how Malaysian clinics and service businesses handle unlimited WhatsApp inquiries automatically — try AlwaysON free for 14 days. No IT team needed. Up in one day.

How Do You Set Auto Reply in WhatsApp Business API?

The API is a different product from the free app. It needs a licensed BSP to access.

The WhatsApp Business API is a cloud-based messaging interface that businesses connect to through licensed BSPs (Business Solution Providers). Unlike the free app, the API supports unlimited keyword triggers, multi-agent inboxes, conversation flows, and rich media replies. In Malaysia, BSP subscriptions start at roughly RM150–RM500/month depending on the provider and message volume, plus Meta's per-conversation fees for business-initiated messages.

To set auto reply through the API:

1. Sign up with a BSP operating in Malaysia. The BSP handles your Meta account verification and API provisioning.
2. Connect your WhatsApp Business number to the BSP's platform dashboard.
3. Build auto reply flows using the platform's visual editor. Define keyword triggers, message sequences, and handoff rules for when conversations should go to a human agent.
4. Test with a real phone number before enabling for customers.
5. Monitor response rates and adjust flows based on what customers actually send.

The critical advantage over the free app: everything runs on the BSP's servers. Auto replies fire at 3 AM on a public holiday, and your phone being off makes no difference.

How Do Malaysian Businesses Set 24/7 AI Auto Reply That Handles Any Question?

Keyword triggers only work for questions you anticipated.

AI-powered WhatsApp auto reply uses large language models to understand message intent rather than match fixed keywords. A patient can ask "ada slot ke jumaat ni lepas pukul 5?" and receive a contextually accurate reply in Malay — without the business pre-programming every possible phrasing. AlwaysON is built specifically for Malaysian local service businesses and uses AI models to power intent-based conversation flows on WhatsApp Business API infrastructure, with configurable handoff to human agents when conversations exceed the AI's scope.

The difference in customer experience:

Keyword auto reply: Customer sends "appointment" → gets "Click here to book: [link]."

AI auto reply: Customer sends "saya nak buat appointment doktor gigi, boleh tak petang khamis?" → gets a Malay-language reply acknowledging the request, confirming available slots, and asking for their name to hold the booking.

For a tuition center, clinic, or gym receiving 50+ WhatsApp inquiries daily, AI-powered auto reply handles the majority of routine questions — pricing, availability, location, operating hours — without any staff involvement. Conversations that genuinely need a person get escalated correctly rather than left on read.

For a direct comparison of AI versus keyword-based approaches, see WhatsApp Auto Reply vs AI Chatbot: What's the Real Difference?.

Frequently Asked Questions

How do I set auto reply in WhatsApp for free?

The WhatsApp Business app includes two free auto reply features: Away Message (sends outside business hours) and Greeting Message (sends on first contact). Both are free on Android and iOS, require no extra software, and take under 3 minutes to configure in Business Tools. They do not support keyword triggers or conditional flows.

Can I set auto reply on WhatsApp without a Business account?

Android users can use apps like AutoResponder for WA to set keyword-triggered replies on a personal number. The app is free with ads or around RM8–RM15/month ad-free. The phone must stay on with the app running — iOS does not support this method. Upgrading to the free WhatsApp Business account is the more reliable long-term option.

Does WhatsApp auto reply work when my phone is off?

The WhatsApp Business app's built-in auto reply does not work reliably when the phone is off or lacks internet. The WhatsApp Business API, accessed through a BSP, runs on cloud servers and sends replies 24/7 regardless of device status — including public holidays, midnight, and weekends.

How many auto reply messages can I set in WhatsApp?

The free WhatsApp Business app supports exactly one Away Message and one Greeting Message. The WhatsApp Business API supports unlimited keyword triggers, conditional reply branches, and multi-step conversation flows. Businesses with more than a few recurring inquiry types typically need the API version to avoid sending every customer the same generic response.

Keep Reading

• How to Set Up WhatsApp Business Auto Reply (Step-by-Step) — detailed steps for the free WA Business app, with screenshot guidance and message writing tips
• Auto Reply to WhatsApp: 4 Methods, How They Work, and Which One Fits Your Business — full comparison of all four methods with honest cost and capability trade-offs
• WhatsApp Auto Reply Message Templates for Malaysian Businesses — copy-ready message text for clinics, salons, tuition centers, and more