Messenger instant replies and away messages: keep them or switch them off?
Facebook lets a Page send automatic messages on Messenger: an instant reply to anyone who writes for the first time, an away message when you are closed, and suggested questions people can tap. They are useful when nobody can answer. Once an AI agent is answering, they can get in the way, because the customer receives two replies that do not match. This guide explains what each one does, when to keep it, when to switch it off, and how the choice depends on the kind of AI agent you use.
What Facebook's automatic replies are
These settings live with your Page, usually in Meta Business Suite under the inbox automations. The names and menus change now and then, but the main ones are:
| Automation | What it does | Typical wording |
|---|---|---|
| Instant reply | Sends a fixed message the first time someone writes to your Page | "Thanks for getting in touch! We usually reply within a few hours." |
| Away message | Sends a fixed message when you have set the Page as away or outside the hours you chose | "We are closed right now and will reply when we open at 9am." |
| Frequently asked questions | Shows questions people can tap when they start a chat, each with a set answer | "What are your opening hours?" with your hours as the answer |
| Keyword replies | Sends a set answer when a message contains a word you chose | "price" answered with a link to your price list |
None of these are AI. They send exactly the words you typed, whatever the customer actually asked.
The double-reply problem
Imagine a customer asks whether you have a size 10 in stock. Facebook's instant reply says "We usually reply within a few hours." Ten seconds later your AI agent says "Yes, we have a size 10 in navy and black." The customer is told two different things at once, and the first one makes you look slow when you were not.
Away messages cause the same clash at night: "We are closed and will reply tomorrow", followed straight away by a full answer. Keyword replies are worse, because they can fire in the middle of a conversation the agent is handling well.
It depends on which kind of agent you use
This is the key question. AI agents come in two kinds, and they behave very differently on an inbox.
| Kind of agent | Examples | Does it answer on its own? | What to do with Facebook's automations |
|---|---|---|---|
| Chat apps | ChatGPT, Claude, Grok | No. They act when you ask them in a chat and do not watch the inbox by themselves | Keep an instant reply and an away message, so customers hear something while you are not asking the agent |
| Always-on agents | Claude Code, Codex, OpenClaw, Hermes | Yes, they can run continuously and answer as messages arrive | Switch off the instant reply, away message and keyword replies, so customers get one answer |
If you use a chat app, your agent drafts and sends replies when you sit down and ask it to, perhaps twice a day. The automatic messages cover the gaps. If you use an always-on agent, it is the instant reply, and the fixed messages only add noise.
Better wording if you keep them
If you keep an instant reply or away message, make it useful rather than generic. Say when you will reply and give the one fact people ask for most. Names and details are examples.
| Before | After |
|---|---|
| Thanks for your message! We will get back to you ASAP. | Thanks for messaging Hill Street Motors. We reply to every message between 8am and 5:30pm, Monday to Friday. MOTs are £45, and you can book by telling us your car's make and model here. |
| We are away right now. | We are closed until 9am tomorrow. If your message is about a car you have left with us, it is safe and locked in. We will reply first thing. |
Keep the frequently asked questions short and true. They still help customers who prefer to tap rather than type, and they rarely clash with an agent because the customer chooses them.
Switching them off for an always-on agent
- Open Meta Business Suite and go to the inbox automations for your Page.
- Turn off the instant reply.
- Turn off the away message, or the setting that marks the Page as away outside set hours.
- Turn off keyword replies, or remove any that overlap with what the agent answers.
- Leave the frequently asked questions on if they are accurate, and give the agent the same answers in its notes so they match.
- Send a test message to the Page from a friend's account and check that exactly one reply arrives.
Remember to turn them back on if you pause the agent for a long time, such as over a holiday. When sending is paused in Spaces, messages still arrive but nothing goes out until you resume:
| What your agent is told | What it means | What to do |
|---|---|---|
| AGENT_PAUSED | You paused the agent or this conversation, or paused all sending for the workspace. The message says which, and why. A paused AI agent is refused everything, reads included, with a 403. | Turn it back on where you paused it when you are ready. After a workspace pause, choose Resume sending in Settings in your dashboard, or ask your AI agent to resume: scheduled messages and automations carry on by themselves. |
Telling the agent when to answer
Spaces does not have per-account working hours for live replies. Working hours exist on scheduled messages and routines. For live replies, you tell the agent in its notes when it should answer and what to say out of hours, or you pause sending.
Messenger, Hill Street Motors:
- Answer every message as it arrives, 7am to 10pm.
- From 10pm to 7am, reply once with: "Thanks, we have your message and will reply properly after 8am." Then answer fully in the morning.
- Our instant reply and away message in Facebook are switched off. You are the only automatic reply.
- Use the same answers as our Facebook FAQs: hours, MOT price, how to book.
- Hand complaints, warranty and insurance questions to Tom.Some owners prefer set replies on triggers rather than an AI. Spaces routines do that: they send a reply you wrote, such as a saved snippet, when a message contains a keyword. Like Facebook's own automations, they are not an AI, so choose one or the other for any given trigger rather than running both.
A worked example
A garage switched off its instant reply after connecting an always-on agent. Names and details are examples.
| Who | Message |
|---|---|
| Customer (9:40pm) | Hi can I get an MOT this week? 2015 Corsa |
| AI agent | Hi Dev, thanks for your message. We are closed now, but I can see Thursday at 8:30 or Friday at 1:00 for an MOT on a 2015 Corsa. It is £45. Would either suit? |
| Customer | Thursday please |
| AI agent | Booked for Thursday at 8:30. Please drop the car off a few minutes early. See you then. |
With the old away message on, Dev would first have been told the garage would reply tomorrow, and then got a full answer seconds later. One reply was clearer.
Limits still apply to every reply
Whether an answer comes from your agent or a routine, it counts towards the Messenger account's limits. Messenger is the tightest channel Spaces supports:
| Action | Spaces limit per account |
|---|---|
| Messages | Up to 50 a day, at least 20 seconds apart |
| New conversations | 3 an hour, 8 a day |
Facebook's own automations are sent by Facebook, not through Spaces, so they do not count towards these limits. That is one more reason not to run both: you would be sending two messages where one would do.
Common mistakes
- Leaving the instant reply on after connecting an always-on agent, so every new customer gets two answers.
- Switching everything off while using a chat app that only replies when asked, so customers hear nothing for hours.
- Facebook FAQs that say one price and agent notes that say another.
- An away message that says "closed" during opening hours because the hours were never updated.
- Forgetting to turn automations back on before a long pause.
Who you message
In short
Facebook's instant replies and away messages are useful when nobody can answer, and they clash when an AI agent can. If you use a chat app such as ChatGPT, Claude or Grok, which acts when you ask it, keep them and make the wording useful. If you use an always-on agent, switch them off and let the agent be the one reply.
Either way, keep the facts the same everywhere, test with a real message, and tell the agent in its notes when and how to answer.
Pricing
FAQ
What is a Messenger instant reply?
It is a fixed message Facebook sends the first time someone writes to your Page. You set the wording in Meta Business Suite. It is not an AI and does not read what the customer asked.
Should I turn off my away message when I use an AI agent?
If the agent runs all the time and answers as messages arrive, yes, or customers get two replies. If you use a chat app that only acts when you ask it, keep the away message on.
Does ChatGPT answer Messenger messages on its own?
No. Chat apps such as ChatGPT, Claude and Grok act when you ask them in a chat and do not watch the inbox by themselves. Always-on agents such as Claude Code, Codex, OpenClaw and Hermes can run continuously.
Can I keep Facebook's frequently asked questions?
Yes, as long as they are accurate. Give your agent the same answers in its notes so customers never get two different versions.
Can Spaces set working hours for my agent's replies?
Not for live replies. Working hours exist on scheduled messages and routines. For live replies, tell the agent in its notes when to answer, or pause sending.
Do Facebook's automatic replies count towards my Spaces limits?
No. They are sent by Facebook, not through Spaces. Only messages your agent or your routines send through Spaces count.
What is the difference between a routine and an instant reply?
Both send set words you wrote, on a trigger. A Spaces routine runs through Spaces and can reply to a keyword, tag a chat or email you a summary. Neither is an AI, so do not run both for the same trigger.
How do I check that customers get only one reply?
Ask a friend to message your Page from their own account after you change the settings. Exactly one reply should arrive, from the agent or from Facebook, never both.