I recently found I have avg. 6m contacts (as per contact report) and 2m subscribers (per all subsc) in my SFMC account. I am confused I thought subscribers (if not equal) will be always greater than contacts.
And this spike happen in last month, is their a way to find out which BU and data extension has import such high number of records in past month? Any report is available or queering data views? I came across SFMC does not offer list of contacts so hard to start investigating?