To restrict time tracking & expense logging, there is an option to assign specific people to specific services.
After enabling "Restricted by person" option on a budget, services with no one assigned will ignore this restriction, until you assign someone.
For more details about how to achieve that, please refer to the help article.
The unique identifier of this service assignment.
The organization this service assignment belongs to.
The person assigned to this service.
ID of the person assigned to this service.
The service this assignment belongs to.
ID of the service this assignment belongs to.