Diagnostic guide
Check what resource was reserved, which system owns the appointment and how the two requests arrived.
Reviewed October 16, 2026 ยท Faith Forge Labs
In a fictional example, two staff members are free but both appointments need the same room. Staff availability alone allows an impossible choice. List every required person and resource, including setup or travel buffers.
Two customers can view the same available slot before either finishes booking. Review whether the system checks and reserves capacity when it commits the appointment, rather than relying only on the earlier availability screen.
Find the owning record and its status. A delayed or failed calendar update can make connected views disagree without changing the stored reservation. Staff need to see and resolve that failed update.
Confirm that a reschedule releases the correct old reservation and creates only one current appointment. Record the named timezone and displayed time on both sides, particularly around daylight-saving changes.
Use appointment identifiers, relevant times, the required resource and expected versus actual behavior. Keep private customer details out of an initial inquiry. Reproduce with fictional bookings and approved test recipients rather than repeatedly contacting customers.