After adding a new user into Office 365, the user has to be allowed to read/write some shared calendars withing the organization. First of all you will need to connect to Office 365 Add permission to the calendar Note: AccessRights can be: Owner, PublishingEditor, Editor, PublishingAuthor, Author, NonEditingAuthor, Reviewer, Contributor, AvailabilityOnly, LimitedDetails Get permission for … Continue reading Editing calendar permissions Office 365 with powershell →