Hi @Tom Dollow
Would you please also post the Usernames.csv file?
For example, if the format of this csv file looks like:
You may need to modify this row in the script.
From:
Add-MailboxFolderPermission -identity NameOfCalendar@domain.com:\Calendar -user $name -AccessRights Editor
To:
Add-MailboxFolderPermission -identity NameOfCalendar@domain.com:\Calendar -user $name.Email -AccessRights Editor
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