Enable Group Tasks in Salesforce Classic

In Salesforce Classic, let users assign independent copies of a new task to multiple users.

Required Editions

Available in: Salesforce Classic
Available in: All editions except Personal
User Permissions Needed
To enable group tasks: Customize Application and Modify All Data
  1. From Setup, enter Activity Settings in the Quick Find box, then select Activity Settings.
  2. Select Enable Group Tasks.
  3. Click Submit.

This setting does not affect Lightning Experience. Groups tasks are enabled by default in Lightning Experience.