Every Messenger automation starts with a trigger — the action that tells your Facebook Page to send a DM. There are three to choose from. Here’s what each one does, a real-world example, and how to pick the right one.
Applies to: Facebook Page (Messenger) automations · ~5 min read
What a trigger is
A trigger is simply the “when this happens” part of your automation. When you create a Messenger automation, the first step is to choose the trigger. After that, you decide what DM to send. The trigger you pick changes who gets your message, how the conversation begins, and even where your DM lands in the recipient’s inbox — so it’s worth understanding all three before you build.
The trigger picker you see right after choosing Messenger as your platform.
1. Comments on your Post or Reel → DM
Often called “comment-to-DM.” When someone comments on one of your Page’s Posts or Reels — optionally with a keyword you choose — your Page sends them a private Messenger DM.
Real-world example: You post a Reel about a free meal-prep guide and write “comment guide and I’ll DM it to you.” Anyone who comments guide automatically receives a DM with the download link.
ℹ️ One thing to know about first-time DMs
When your Page messages someone for the first time — which is exactly what comment-to-DM does for a new person — Meta puts that DM in their Message
Requests (and sometimes the Spam sub-tab) until they open it. That’s the message-pending folder Facebook uses to keep inboxes tidy. It’s normal, not a bug. See Why
your DM landed in Message Requests or Spam.
2. Sends you a DM (incoming message)
When someone messages your Page directly — optionally with a keyword — your Page sends an automatic reply. Because the person reached out first, the conversation is already open.
Real-world example: Someone messages your coaching Page asking “do you have pricing?” Your automation watches for the keyword pricing and instantly replies with your rates and a “Book a call” button — even while you’re asleep.
✅ Why this one is the friendliest
Because the person messaged you first, your reply lands in their main inbox — no Message Requests detour. There’s also no “tap to receive” conversation-starter step needed.
3. Referral Link / QR code
A special link (an m.me link) or a QR code that, when opened, starts a chat with your Page and automatically sends your DM. Think of it as a “tap here to get my message” shortcut you can put anywhere.
Real-world example: You print a QR code on a flyer at your pop-up stall: “Scan for 10% off.” When a visitor scans it, Messenger opens a chat with your Page, and your discount code DM is sent straight away. The same link works in your bio, your link-in-bio page, or an email footer.
A referral automation generates a shareable m.me link you can copy and drop anywhere.
Which should I use?
It comes down to how your audience reaches you. Use this quick comparison:
Trigger | Use it when… | Where the DM lands
|
Comment-to-DM | You want a Post or Reel to capture interest and reply automatically. | Message Requests first (then main inbox once they open it). |
Sends you a DM | People already message your Page with questions or keywords. | Straight to their main inbox. |
Referral Link / QR | You want a tap-to-receive link for a bio, email, or printed material. | Main inbox (the person opened the chat). |
Many creators use more than one: a comment-to-DM on a viral Reel, an incoming-message reply for FAQs, and a referral QR on physical flyers. You can build a separate automation for each.
Frequently asked
Can I use all three triggers at once?
Yes — each automation has one trigger, but you can create as many automations as you like on the same Page and run them side by side.
Do all three support keywords?
Comment-to-DM and incoming-message can both match on specific keywords (or any comment/message). A referral link fires when the link or QR is opened, so it doesn’t need keywords.
Which trigger avoids the Message Requests folder?
Both Sends you a DM and Referral Link / QR avoid it, because the person opens the conversation first. Only comment-to-DM’s first message starts in Message Requests.
Related articles
Set up a comment-to-DM automation
Set up an incoming-message auto-reply
Set up a Referral Link / QR automation