1. From Setup, enter Manage Users in the Quick Find box, then select Manage Users | Users.
2. Click a field service user’s name.
3. Click Permission Set Assignments at the top of the page or scroll down to the Permission Set Assignments related list.
4. Click Edit Assignments.
5. Enable the appropriate permission sets and click Save.TasksRequired Standard ProfilePermission SetsAdministrator: Manage all Field Service Lightning objects, including the Field Service Admin app, Field Service Lightning Visualforce pages, and logic services.System AdministratorFSL Admin LicenseFSL Admin PermissionsAgent: Access all global actions and their related objects to create, book, and schedule service appointments.Standard User or System AdministratorFSL Agent LicenseFSL Agent PermissionsDispatcher: Access all global actions and their related objects to create, book, and schedule service appointments.Standard User or System AdministratorFSL Dispatcher LicenseFSL Dispatcher PermissionsManage service appointments and their related parent objects.Standard User or System AdministratorFSL Mobile LicenseFSL Resource LicenseFSL Resource Permissions
6. FSL Admin License
7. FSL Admin Permissions
8. FSL Agent License
9. FSL Agent Permissions
10. FSL Dispatcher License
11. FSL Dispatcher Permissions
12. FSL Mobile License
13. FSL Resource License
14. FSL Resource Permissions
15. Click Permission Set License Assignments at the top of the page or scroll down to the Permission Set License Assignments related list.
16. Click Edit Assignments.
17. Enable the appropriate permission set licenses and click Save.Permission Set LicenseDescriptionField Service StandardEnable this permission set license for all field service users.Field Service SchedulingEnable this permission set license for all mobile resources.Field Service DispatcherEnable this permission set license for all dispatcher console users.Field Service MobileEnable this permission set license for all mobile resources.