This task requires permissions that are found in all default marketing security roles Defined sets of privileges.The security role assigned to a user determines which tasks the user can perform and which parts of the user interface the user can view. All users must be assigned at least one security role in order to access the system.. More information about specific permissions and performing this task while offline: Marketing Permissions
In the Navigation Pane, click Marketing, and then click Campaigns.
Open the campaign you want to add a task to.
Under Details, click Planning Tasks, and then on the Actions toolbar, click New.
In the Subject box, enter text that describes the task.
In the box below, you can add specific details about how to complete the task.
If needed, specify a new owner for the record in the Owner box. This box is filled automatically with the name of the user who is creating the record. You can click the Lookup button to search for other records.
On the Notes tab, click Click here to enter a new note, and add the information that applies to your record.