I have two questions I was hoping to get clarification on. I have a hybrid coexistence to Office 365 with adconnect and exchange online. I've migrated all of my mailboxes to exchange online.
1. If I remove a license to an existing remote mailbox, what is the time this goes into the recycle bin and is un-recoverable? Is it 30 days from the creation date of the account, or mailbox creation, or a flat time period?
2. From the Office portal, in Reports > Usage > Active Users > Office 365 > Active Users - I'm exporting a list of users for the last 90 days in trying to determine no activity. This gives me "Last Activity Dates" for:
Exchange Last Activity Date
OneDrive Last Activity Date
SharePoint Last Activity Date
Skype For Business Last Activity Date
Yammer Last Activity Date
Teams Last Activity Date
My purpose is to remove the licenses that are not being used. If I removed a license for an account with no activity in the past 90 days across these modalities, would this include just those applications, or word, excel, powerpoint, etc as well?
Does anyone know the algorithm used to measure exchange activity? Is it just sent and receive metrics?