Managing Office 365 - An Overview

[anovosel]

Is it safe use production cloud office 365 extended calendar properties

[#2]

Hi! Please elaborate some more on your question!

[#3]

We need extended outlook calendar property ID in Outlook365 for user calendars to serve our migrated data on production cloud Office365with uniqunes calendar reference between room reservation systems. 

Is it save to add into production cloud outlook celndar for thousand user accounts extended reservationID