In Office 365 Creation dates of users, groups, mailboxes, public folders, Shared mailboxes, security and distribution groups give an indication of the growth of these entities in Office 365 and is a good metric for capacity planning. While creation dates alone may not be sufficient to gauge growth, it is a useful factor in determining say, the number of users and mailboxes that are created each month or quarter or year. Such reports give administrators a very useful metric that they can use as a Office 365 usage and growth summary in their presentations to their management.
Active Users by Created Date
This report shows the list the count of users based on created date.
Groups by Created Date
This report shows the list the count of groups based on created date.
Distribution Groups by Created Date
This report shows the list the count of distribution groups based on created date.
Security Groups by Created Date
This report shows the list the count of security groups based on created date.
Mailbox by Created Date
This report shows the list the count of mailbox based on created date.
Shared Mailbox by Created Date
This report shows the list the count of shared mailbox based on created date.
Public Folders by Created Date
This report shows the list the count of public folders based on created date.