how to change the calendar visibility from busy to free for multiple users in an organization

Question

We recently migrated to Microsoft and by default the all the users have been set to busy on calendars. Is there a way to bulk change it to public

Answer 1

Hello Shwetha,

You can use the Powershell CMDLet Set-MailboxCalendarFolder -Identity ******@domain.com:\Calendar -PublishEnabled $true -DetailLevel FullDetails to do it.

You can locate more information about it in

https://learn.microsoft.com/en-us/powershell/module/exchange/set-mailboxcalendarfolder?view=exchange-ps

Answer 2

Hi @Shwetha V Shetty

Welcome to our forum!

Yes, you can change the calendar visibility from "busy" to "free" for multiple users in your organization using PowerShell. Here's a general approach to achieve this:

1. Connect to Exchange Online: First, you need to connect to Exchange Online using PowerShell. Open PowerShell and run the following commands:

      $UserCredential = Get-Credential
      Connect-ExchangeOnline -UserPrincipalName $UserCredential.UserName -Password $UserCredential.Password
   

2. Get the list of mailboxes: Retrieve the list of user mailboxes you want to update. You can filter this list based on your organization's requirements. For example, to get all user mailboxes:

      $mailboxes = Get-Mailbox -RecipientTypeDetails UserMailbox
   

3. Update calendar permissions: Loop through each mailbox and set the default calendar permission to "Free/Busy time". Here's a script to do that:

      foreach ($mailbox in $mailboxes) {
          Set-MailboxFolderPermission -Identity "$($mailbox.Alias):\Calendar" -User Default -AccessRights LimitedDetails
      }
   

If you need to set the calendar to show only "Free" without any details, you can change the -AccessRights parameter to AvailabilityOnly:

foreach ($mailbox in $mailboxes) {
    Set-MailboxFolderPermission -Identity "$($mailbox.Alias):\Calendar" -User Default -AccessRights AvailabilityOnly
}

Hope it helps.

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