@johan_myny Good afternoon,
Sharing the following in case this could help someone. This is based on my experience and possibly not applicable to everyone or to every configuration:
SCENARIO:
* A security group was created to add admin users inside"
* Calendar owner A adds a new bookings calendar "New"
* Calendar owner A adds the security group the "New" calendar as admins
* Administrator B from the security group adds Administrator C using the booking page > go to staff > add new staff
* Administrator C cannot access the "New" calendar
* If owner A removes Administrator C and re-adds him, Administrator C is able to access and use "New" calendar (this works because it appears the owner of the calendar transfer permissions properly to users).
SOLUTION:
* To avoid issues, Owner A uses powershell to remove and add admins.
* Owner A removed the security group from the "New" calendar using PowerShell (users using bookings with access granted to the security group created inconsistencies)
* Owner A, added Admin B using PowerShell
* Admin B added Admin C and admin C confirmed it works and they can access bookings well (if not, then adding admins directly from powershell will be the way to go).
POWERSHELL:
* Ask your admin to give you monitored access to bookings to use powershell
* when granted, access the role page in azure and activate the role
* on your pc > click the windows icon > search for powershell > select windows powershell (x86)
* enter command: connect-exchangeonline
* Authenticate
* You can now copy and paste commands below (after is pasted you can edit the emails and calendar names)
* You can copy and paste the below including the titles. For instance you can copy ##REMOVE AND....this way it will help you re-use the commands and move quickly
## REMOVE AN ADMIN FROM THE BOOKINGS CALENDAR :
$admin = "email address removed for privacy reasons"
Remove-MailboxPermission -Identity "add calendar name here" -User $admin -AccessRights FullAccess -InheritanceType All -Confirm:$false
Remove-RecipientPermission -Identity "add calendar name here" -Trustee $admin -AccessRights SendAs -Confirm:$false
Note: Where to find the correct calendar name > go to Azure > either user or groups > search for the calendar > open it > copy the email >use the name or the full email.
#CHECK BOOKINGS CALENDAR PERMISSIONS:
>> Get-MailboxPermission "add calendar name here"
>> Get-RecipientPermission "add calendar name here"
Note: If you see >> >> Get-mailboxpermission when you copy simply remove one set of this >> so that it only shows >> Get-mail......
## ADD ONE ADMIN AT A TIME TO THE BOOKINGS CALENDAR
$bookingname = "add calendar name here"
$admin = "email address removed for privacy reasons"
Add-MailboxPermission $bookingname -User $admin -AccessRights FullAccess -InheritanceType All -Automapping $false
Add-RecipientPermission $bookingname -Trustee $admin -AccessRights SendAs -Confirm:$false
Good luck!!
