ActionLinkedInUpdated May 2026

How do I comment on a LinkedIn post?

Short answer: Drop the "LinkedIn → Comment on LinkedIn Post" action anywhere in your workflow, map the inputs from upstream nodes, and publish.

Use this action All 8 LinkedIn actions

Inputs

The fields this action accepts.

Every field can be mapped from an upstream trigger, AI step, table row, or hard-coded literal.

Field	Type	Required	Description
Post URN post_urn	string	Required	urn:li:share:71...
Actor URN (commenter) actor_urn	string	Required	—
Comment Text message	string	Required	—

Sample request

{
  "post_urn": "urn:li:share:71...",
  "actor_urn": "{{trigger.actor_urn}}",
  "message": "{{trigger.message}}"
}

Returns

{
  "id": "urn:li:comment:..."
}

Use these fields in downstream nodes for routing, logging, or error handling.

Triggered by

Apps that pair well as the trigger for Comment on LinkedIn Post.

Any of these apps can fire this action as part of a workflow.

Google Sheets → LinkedIn

2 Google Sheets triggers

HubSpot → LinkedIn

18 HubSpot triggers

FAQ

Questions about Comment on LinkedIn Post.

What does the Comment on LinkedIn Post action do in LinkedIn?

Posts a comment as the authenticated user (or organisation if connected as an org admin). For "react to mentions of our brand" or "engage with community" workflows.

What inputs does Comment on LinkedIn Post require?

Required: Post URN, Actor URN (commenter), Comment Text. Every input accepts a static value or a variable from any upstream node in your workflow.

Can I use dynamic inputs from earlier workflow nodes?

Yes. Any field on this action can pull values from upstream nodes, whether that's a form response, a trigger payload, an AI output, or a lookup result.

What happens if LinkedIn returns an error?

The workflow pauses on the failed node, the error message is captured in the run log, and you can retry the run with one click. Auto-retry policies are configurable per workflow with exponential backoff up to 5 attempts.

Does Comment on LinkedIn Post support batch operations?

Yes. Run Comment on LinkedIn Post inside a Loop node to process arrays. Tiny Command handles LinkedIn's rate limits automatically so you don't have to throttle manually.

More actions

Send comment on linkedin post from your workflows.

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