A Microsoft digital storytelling app for creating and sharing interactive reports and presentations.
Hi Chrys,
Admins have access to an audit feature which allows them to look through some logs to be able to determine who created it and when. See this article - https://docs.microsoft.com/office365/securitycompliance/search-the-audit-log-in-security-and-compliance
There is no way for admins to access globally aggregated data for things like how many Sways have been created/viewed. There is no quota related to Sway; Sways do not count against O365 storage.
Once a user has been deleted, admins can move their Sways to another user's account. See this article - https://support.office.com/article/reassign-sways-from-a-deleted-user-account-admin-help-9580e618-3c3e-4d28-a6ef-74c00a997248
Let us know if you have further questions.
Jason