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Automate Your Business Processes with Salesforce Flow
Mention a User or Group in a “Post to Chatter” Process Action

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Mention a User or Group in a “Post to Chatter” Process Action

When you post to a Chatter feed from a process, you can mention users if you can reference the corresponding User ID field from the field picker.

Required Editions

Available in: both Salesforce Classic (not available in all orgs) and Lightning Experience
Available in: Essentials, Professional, Enterprise, Performance, Unlimited, and Developer Editions
User Permissions Needed
To create, edit, or view processes:

Manage Flow

AND

View All Data
Important
Important Support and updates for Process Builder have ended as of December 31, 2025. This means that support won't be provided for any process and bugs in the Process Builder product won't be fixed. See Workflow Rules & Process Builder End of Support.

After December 31, 2025, existing processes continue to run, and you can activate, deactivate, and edit them; however, we recommend using Flow Builder. To migrate existing processes, plan your switch to Flow Builder and use the Migrate to Flow tool. For new automations, create flows in Flow Builder.

When you’re configuring the Post to Chatter action:

  1. In the Message field, enter @[].
  2. Place your cursor between the square brackets.
  3. Click Merge Field, navigate to the user who you want to mention, select the corresponding ID field, and click Choose.
    The field reference appears between the square brackets. 
    @[{!fieldReference}]
  4. Save the action.
Example
Example To @mention a case’s account owner, navigate to the account’s fields and select Owner ID. Insert that field reference between the square brackets in @[], so that the result is:
@[{![Case].Account.OwnerId}]
 
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