Recently I've implemented Field Service Lightning into my workforce. Sadly I've come up with an unexpected blocker. My technicians can't edit the Service Appointments via mobile app that have been assigned to them. I've already checked the profile permission, but nothing has happened so far. Any suggestions on how to enable editing of this object via the mobile app?
Technicians cannot edit Service Appointment status directly from FSL mobile app , you need to set up a Flow of type Field Service Mobile Flow and expose it to Technicians through App Extension from Field Service Mobile Settings.
Please refer this help article: