Admin Users are able to configure Project Types to prevent individual contributors from logging time directly against the Project or Milestone and encourage them to instead choose a more appropriate against object when creating a work log or message.
Using Time Logging Controls
1: From Settings → Projects → Types, Progressions & Fields edit the Type of Project you want to apply the Time Logging Controls to.
2: There will be 2 toggles:
Restrict users logging time directly against a Project.
Restrict users logging time directly against a Milestone.
Toggle on both to ensure users can only log time directly against a Task.
Applying the controls – Creating or Editing a Project
When a Project is created, or when its Project Type is changed, the Project inherits the time-logging control settings associated with that Project Type.
Note: Changes to time-logging controls on a Project Type only apply to Projects that are newly created or updated to use that Type. Existing Projects that already use the Type will not be updated automatically.