Microsoft Can't Access Booking Calendar

Kimberly Boyd I used the instruction from Victor Ungureanu, he has the powershell commands in his YouTube video. I logged into Powershell as an admin 

$UserCredential = Get-Credential

$Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://outlook.office365.com/powershell-liveid/ -Credential $cred -Authentication Basic –AllowRedirection

Set-ExecutionPolicy RemoteSigned

Import-PSSession $Session

Connect-MSOLService -credential $LiveCred

Set-ExecutionPolicy RemoteSigned -Force

found my Bookings mailboxes that had broken permissions by running the following

get-mailbox -RecipientTypeDetails SchedulingMailbox | ft DisplayName,PrimarySmtpAddress

Then ran:

Remove-MailboxPermission YourBooking SMTP@yourdomain.onmicrosoft.com -User adminuser@yourdomain.onmicrosoft.com -AccessRights FullAccess -Deny:$false

Add-MailboxPermission SMTP@yourdomain.onmicrosoft.com -User adminuser@yourdomain.onmicrosoft.com -AccessRights FullAccess -Deny:$false

Change YourBookingSMTP to the booking your cannot access from your list, change the user email to the person you want to add as an owner. Remove then add. Wait 15 minutes and you should have access again.