WhatsApp Auto-Reply: How to Set It Up, and When to Automate More

Most Singapore customers would rather message than call. They WhatsApp your business at 10pm, on a public holiday, or in the middle of your busiest hour, and they expect a reply quickly. A WhatsApp auto-reply is the simplest way to make sure no message sits unanswered, even when no one is at the phone. This guide covers how to set one up, what the built-in tools can and cannot do, and when it is worth going further.

What a WhatsApp auto-reply actually is

The WhatsApp Business app gives you two automated messages out of the box. A greeting message welcomes someone the first time they contact you. An away message replies for you when you are closed or busy. Both send a fixed, pre-written line, so the customer gets an instant acknowledgement instead of silence.

Used well, this buys you time and sets expectations. Used badly, it becomes a dead end that frustrates people. The difference is in the wording and in knowing where the feature stops.

How to set up auto-reply in the WhatsApp Business app

You can turn both messages on in a couple of minutes:

1. Open the WhatsApp Business app and go to Settings, then Business tools.
2. Tap Greeting message, switch it on, and write a short welcome. Keep it warm and specific, for example: “Hi! Thanks for messaging [your business]. How can we help you today?”
3. Tap Away message, switch it on, and set the schedule (outside business hours, always, or a custom window). Write a line that tells the customer when to expect a reply, for example: “Thanks for your message. We are closed now and will reply by 9am tomorrow.”
4. Save. Both messages now send automatically based on the rules you set.

A good WhatsApp business greeting message does three things: it confirms the customer reached the right place, it sounds human, and it tells them what happens next. Avoid generic lines like “We have received your message” that say nothing.

Where the built-in autoresponder falls short

The built-in WhatsApp autoresponder sends the same fixed message to everyone. It cannot read what the customer asked. So a person who messages “Do you have a slot this Saturday?” gets the same “we will reply soon” line as someone asking for your address. The real questions still pile up for you to answer by hand, and the customer still waits.

For a lot of businesses that is the gap that loses sales. The auto-reply keeps the lead warm for a few minutes, but if nobody follows up fast, the customer messages the next business on their list. Acknowledging a message is not the same as answering it.

From auto-reply to real WhatsApp business automation

The next step up is WhatsApp business automation that actually handles the conversation. Instead of one canned line, an AI assistant reads the message, understands the intent, and replies with a real answer using your services, prices and booking rules. It can check your calendar, offer a slot, take the booking, and hand over to your team the moment a human is the better choice.

That is what Ah Va does on your own WhatsApp Business number. She answers enquiries in English, Mandarin or Singlish, books the appointment there and then, and follows up on the ones who went quiet, all within WhatsApp’s rules and Singapore’s PDPA. If most of your enquiries end in a booking, pairing that with automated appointment booking turns a busy inbox into confirmed slots without your team chasing each one.

Knowing how to automate WhatsApp is really a question of how far you want to go: a simple auto-reply to acknowledge messages, or a full assistant that answers and books. Start with the greeting and away messages today. Move to automation when the volume of real questions is more than your team can answer fast enough.