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Shared Calendar only showing "Free/Busy" Appointments on iOS Outlook App
Forgive me if the solution has already been posted, I couldn't find it. My company has an outlook account that's sole purpose is to house a shared company job calendar separate from anyone else's ( ...
if this is a office 365 corporate calendar then you can try the below by power shell.
log into your admin center first by right clicking power shell and running as admin. the run the below two lines together and enter your login details
$UserCredential = Get-Credential
$Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://outlook.office365.com/powershell-liveid/ -Credential $UserCredential -Authentication Basic -AllowRedirection
then set the default permission on your calendar to reviewer with the below line
Set-MailboxFolderPermission -Identity <mailbox@domain>:\Calendar -User default -AccessRights reviewer
enter the calendar email address in the <> and remove the <> after
hope this helps you