Office 365 - add appointment to all users AND force accept the appointment as Global Administrator

Question

UnixDude here - I need a script to push all the Banking Holidays into our employee's calendars to mark them all as "out of office." No one seems to have any answer to this. Learn pages keep assuming individual users instead of a bulk update. Powershell would be nice. Need to rerun this whenever we have a new hire.

For each Holiday

For each user

Create appointment (Out of Office, no suggest time) for user from ******@company.com.

Accept appointment for user

Next User

Next Holiday

This is to resolve the Microsoft Bookings issue that makes you go to every calendar, select all staff by clicking each one, and make appointment there. For 250+ users, and 20 calendars, and 15 holidays, that's THOUSANDS of clicks - and it's not smart enough to update any new staff with these "out of office" days.

Anyone have any great ideas or alternate solutions?

Answer 1

Hi @Brian Kinney,

To my knowledge there is no built-in solutions for this.

You may need to use Microsoft Graph scripts to achieve this goal.

Besides, if the main purpose is to enable OOF for these users during holidays, to me another method is to add all users to a csv file, then periodically run a script in Exchange Online Powershell to bulk enable OOF with the Set-MailboxAutoReplyConfiguration cmdlet for these users.

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