Who Are Considered "All Members/Participants"
In the platform, you may frequently see mentions of collaborators such as @All Members or @All Participants.
In the context of a record, a post, a task, or a calendar event — who exactly are considered "all members/participants"?
1. Frequent Collaborators
When mentioning someone in a record discussion or when adding members, a list of frequently collaborated users will appear.

You can customize this list of frequent collaborators.
To manage this list, go to Contacts, then click Manage Frequent Collaborators.

The system recommends users you’ve interacted with most often in the last 30 days, including:
- Users you’ve @mentioned or who @mentioned you in records, posts, or calendar discussions.
- If no such interactions exist, the system will display your direct manager and subordinates instead.
You can also manually add, remove, or reorder frequent collaborators.

2. All Participants in a Record
In a worksheet record discussion, you can mention either individual members or @All Participants of the Record.
Participants of a record include:
- The record owner
- Members added via members-type fields
- Users who posted a comment in the record
- Users who were mentioned in the discussion
When you mention @All Participants, all of the above will receive a notification.

Note:
If a members field is set to "Store Data Only", users added via this field will not be treated as participants and will not be notified when @All Participants is mentioned.

3. All Participants in a Post
All participants of a post include:
- Users mentioned in the original post
- Group members mentioned in the original post
- Users who replied to the post
- Users mentioned in replies
- Group members mentioned in replies
When @All Participants of the Post, everyone in these categories will be notified.
4. All Members in a Task
When @All Members in a task comment, the following people will receive notifications:
- The task owner
- Task members
5. All Members in a Calendar Event
When @All Members of a Calendar Event, all participants of that event will be notified.