Managing holidays and birthdays calendars for all users.

Senior Member

Hello to all. Is it possible to manage the holidays and birthdays calendars for all users in M365 admin console, like bulk remove birthdays calendars for users or add / change country for holidays calendar?


2 Replies
best response confirmed by Bogdan Kulish (Senior Member)

You will need some EWS/Graph API based script for that, here's a sample one:

Hello @Bogdan Kulish,


looks like i'm faced with the same challenge you had some time ago. Trying to find a solution to disable/enable the birthday calendar for multiple users on backend side (by using Powershell/EWS/GraphAPI).

Did you manage to find a working approach and are able to share it?


Anyone else is also welcome to join in ;)

Thanks and cheers!