If you need to find out when a user was created you can run this in PowerShell:
Connect-ExchangeOnline
Get-Mailbox user@contoso.com | select-object WhenCreatedUTC,Name
It will tell you when the users mailbox was created.
A blog about some of the things I work with every day
If you need to find out when a user was created you can run this in PowerShell:
Connect-ExchangeOnline
Get-Mailbox user@contoso.com | select-object WhenCreatedUTC,Name
It will tell you when the users mailbox was created.