Reply To A Comment
Reply to comments on your posts automatically — deliver a resource, answer a common question, or keep the conversation going without lifting a finger.
Action Overview
The Reply To A Comment action posts a reply to a comment on the selected LinkedIn post. Pair it with the New Post Comment trigger, which supplies the comment to reply to, and make sure an earlier step finds or creates a contact — the action can't run without one. Use it to deliver a resource to anyone who comments a keyword, answer common questions automatically, or keep the conversation going on your posts.
Use Cases
- Comment-to-Lead Delivery – Reply publicly ("Just sent it over!") the moment someone comments your keyword, while the resource goes out by message
- Automated FAQ Responses – Reply automatically to comments asking common questions
- Conversation Continuity – Keep replying to comments to hold engagement (and reach) on a post
Inputs and Required Data
Comment ID (required) – Identifier of the comment to reply to
Example: from the New Post Comment trigger payload
Post ID (required) – Identifier of the post the comment is on
Example: from the New Post Comment trigger payload
Comment (required) – The reply text to post
Example: Just sent it over — check your inbox!
Mention Name (optional) – The display name to use when @mentioning the commenter in your reply
Example: Sarah Chen
Mention Provider ID (optional) – The Provider ID of the person to @mention
Example: from the New Post Comment trigger payload
Company Provider ID (optional) – Reply as a company page instead of an individual (must have permission to act on its behalf)
Example: 436356
{@mention} in your Comment text, and provide their name and Provider ID in Mention Name and Mention Provider ID. Example: {@mention} thanks for the comment — here's the link!Obtaining Inputs
- Comment ID and Post ID come directly from the New Post Comment trigger payload
- Mention Provider ID also comes from the trigger payload — it's the commenter's Provider ID
- Company Provider ID is required only when replying as a company page
Response
The Reply To A Comment action returns:
- Response – Confirmation that the reply was posted
- Comment ID – Identifier of the new reply comment
Workflow Integration
- Trigger the Workflow – Start with New Post Comment, filtered by keyword if you're running a comment-to-lead campaign
- Find or Create the Contact – Add a Find Contact action (by ID) using the Provider ID from the trigger; create the contact if none is found
- Reply To A Comment – Map Comment ID, Post ID, and your reply text; add
{@mention}with the mention fields if you want to tag the commenter - Continue the Sequence – Deliver the resource by message, or move on to your next follow-up step
Related Actions
- New Post Comment (trigger) – Provides the Comment ID and Post ID this action requires
- React To A Comment – A lighter-weight acknowledgment when a full reply isn't needed
- Send A Message – Follow up with a direct message alongside the public reply
Common Errors and Troubleshooting
Action Fails to Run
- Cause: The Comment ID or Post ID wasn't passed through from the trigger
- Solution: Map both fields directly from the New Post Comment trigger payload — both are required
Workflow Gets Stuck Before This Action
- Cause: No contact was found or created earlier in the workflow
- Solution: Add a Find Contact action (by ID) before this step, creating the contact if none is found
Mention Doesn't Appear Correctly
- Cause: The
{@mention}placeholder wasn't typed exactly, or Mention Name / Mention Provider ID weren't both provided - Solution: Use the exact text
{@mention}in the Comment field, and make sure both mention fields are filled in together
Best Practices
- Reply publicly as well as messaging privately — a public reply keeps the post active and visible to others considering the same comment
- Use
{@mention}to make automated replies feel personal rather than generic - Keep replies short and specific to what was asked or requested — generic replies read as automation