Comment-to-DM automation tools: how to judge a keyword trigger

Why this type sits at medium risk

A keyword trigger has a point in its favor that most messaging automation lacks: the customer starts it. They read a post that said 'comment MENU and we will send it', and they commented. The message they receive is one they asked for.

The risk comes from everything the rule cannot see. It does not know whether the person typed the word as a request or in passing. It does not know that the offer ended yesterday. So the rule has to be built in a way that makes those cases rare and harmless.

Choose a keyword that means one thing

The keyword is the part of a false trigger you control, so choose it with care.

• Pick a word people would not use in an ordinary comment. 'GUIDE' is safer than 'yes' or 'love'.
• State it in the post itself, in capitals, with what the person will receive.
• Use one keyword per offer, so you always know which rule sent which message.
• Avoid words that could appear in a complaint, such as 'refund' or 'help'.

Write the message as if you sent it by hand

The message should do what the post promised and nothing more: a greeting, the link, one line on what the link is. Do not attach a second offer or a question that expects an answer, because nobody may be there to reply. Open the link on a phone before the rule goes live. A working rule that sends a broken link is a failure the customer sees before you do.

Six checks for any tool

Each network also sets its own rules for automated messages. Check them for the platforms you use, and keep to messages people asked for.

• Match. Does it fire on the exact word only, or on anything similar?
• Scope. Is the rule tied to one post, or to every post on the account?
• Preview. Can you see the exact message a commenter will get?
• Repeat. What happens when the same person comments twice?
• Networks. Which platforms does the rule run on, by name?
• Off switch. Can a colleague who did not build the rule turn it off?

Retire the rule when the offer ends

A keyword rule outlives its post unless someone ends it. Give each rule an end date when you create it, matched to the offer. When the date arrives, switch the rule off and note how many links were sent and how many were clicked. The automation audit entry has a simple sheet for it.

Where Link AI fits for keyword DMs

Link AI by Linkme is our pick for this type because the rule Linkme publishes is as narrow as we would want: 'When someone comments [KEYWORD] → send a DM with a link'. Linkme lists setting up automations among the things Link AI does through its chat interface, and its Analytics counts link clicks.

Its page does not say which platforms DM Automations run on, how matching works or how a rule is switched off. Linkme describes this one rule and nothing resembling a chatbot or a message sequence, so do not plan around either. Book a demo to try Link AI, set up one keyword on a real post and comment it yourself.

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