st.commentOnPost

This action allows you to leave a comment on a post.

Constraints

⏺️ Root Start: allowed, when postUrl parameter is provided.

⬆️ Parent Actions: st.openPost, st.doForPosts.

⬇️ Child Actions: N/A.

Parameters

{
  "actionType": "st.commentOnPost",
  "label": "post1",
  "postUrl": "https://www.linkedin.com/posts/post1",
  "companyUrl": "https://www.linkedin.com/company/company1",
  "text": "I completely agree with your point."
}

• label (optional) – custom label for tracking this action in workflow completion.
• postUrl (required for root start, forbidden for parent start) – LinkedIn URL of the post.
• text – comment text, must be up to 1000 characters.
• companyUrl (optional) – LinkedIn company page URL. When provided, the comment will be posted on behalf of the company. Requires content admin access to the company page.

Result options

1. Successful post commenting:

{
  "actionType": "st.commentOnPost",
  "label": "post1",
  "success": true,
  "data": {
    "commentUrn": "urn:li:comment:(urn:li:activity:1234567890123456789,9876543210)",
    "commentUrl": "https://www.linkedin.com/feed/update/urn:li:activity:1234567890123456789/?dashCommentUrn=urn%3Ali%3Afsd_comment%3A(9876543210%2Curn%3Ali%3Aactivity%3A1234567890123456789)"
  }
}

• label – included only if specified in the action parameters.
• data – information about the created comment.
  • commentUrn – LinkedIn URN of the created comment, if available.
  • commentUrl – canonical deep-link URL of the created comment, if available. It can be used as the commentUrl input for st.openComment, st.reactToComment, or st.replyToComment.

2. Failed post commenting:

{
  "actionType": "st.commentOnPost",
  "label": "post1",
  "success": false,
  "error": {
    "type": "commentingNotAllowed",
    "message": "Commenting is not allowed on this post."
  }
}

• label – included only if specified in the action parameters.
• error.type – enum with the following possible values:
  • postNotFound – provided URL is not an existing LinkedIn post.
  • commentingNotAllowed – commenting is not allowed on this post. This could be due to the post author's privacy settings, LinkedIn restrictions on commenting, or because the post type does not support comments.
  • noPostingPermission – no permission to comment on behalf of this company.