Most integrations that create Resources want to relate the Time Tracking with those resources.One important note regarding this: Time Tracking does not have a direct relation to a resource.However there is a indirect relation, a few things to take in account:
By retrieving Time Tracking withuser.resource it is be possible to connect a Time Tracking to a resource. This link is optional, thus it is possible no resource is returned.In addition, make sure that the customer has set up their users correctly.See Difference between resources and users in our support documentation.