Power Platform Community Forum Thread Details

Hello MS PowerUsers,

I hope someone in the community can help.

We have Microsoft Bookings setup and working nicely. However one of the booking types is a virtual booking that I need to add a Meeting room resource (Poly Teams Device)

I have tried to setup an Flow to trigger on new event in the calendar, check the subject for the event and if it states Virutal appointment to then update with the additional attendee. The addition of the user appears to be working correctly, however the room system cannot join the online meeting.

I then tried to use the Graph API to update the event with "isOnlineMeeting": true and "onlineMeetingProvider": "teamsForBusiness". Although the flow appears to work, the meeting remains un-joinable by the room system.

If I manually create an appointment and exclude the teams link the flow works successfully and allows the room system to join. The flow appears that it fails on events that are created by Microsoft booking system.

Flow Construction

When a new event is created (V3)
1. Calendar id = Calendar
Get event (V3)
1. Calendar id = Calendar
2. Item id = id
Condition
1. "Subject" is equal to "Virtual Appointment
  1. If Yes
    1. Update Event (V4)
      1. Calendar id = Calendar
      2. id = id
      3. subject = subject
      4. starttime = addhours(currentstart, 10)
      5. endtime = addhours(currentend, 10)
      6. Timezone +10
      7. Required Attendees = required attendees
      8. Optional Attendees = optional attendees
      9. Resource Attendees = resource attendees + room@...
      10. Body = body
      11. location = location
      12. show as = busy
    2. Invoke an HTTP request
      1. Method = PATCH
      2. URL = https://graph.microsoft.com/v1.0/me/events/@{outputs('Get_event_(V3)')?['body/id']}
      3. Headers
        Key = Content-Type
        Value = application/json
      4. Body
        {
        "originalStartTimeZone": "originalStartTimeZone-value",
        "originalEndTimeZone": "originalEndTimeZone-value",
        "isOnlineMeeting": true,
        "onlineMeetingProvider": "teamsForBusiness",
        }
  2. If No
    1. Do Nothing.