Chatter visibility rules for records, mentions, and shared posts
Key Takeaway
Who can see a Chatter post depends mainly on where it was posted. Mentioning or sharing does not give anyone access they would not otherwise have.
Chatter lets users post, comment, @mention, and share updates on profiles, groups, and records. Chatter follows all of the org's security and permission settings.
The location of a post sets its audience
The location of a post sets its audience, and file access follows the post.
| Who can see the post | Who can access a file attached to the post | |
|---|---|---|
| Post on a record | The record's sharing decides: only people with permission to access the record | Everyone with sharing rights to the record, because the file is tied to the record |
| Post on a profile | Profile access decides: anyone except customers | All employees |
| Post in a group | The group type decides | Anyone with access to the group |
Comments inherit the post's visibility, so anyone with access to the original post can also see all comments on it.