I have been trying to delete Contacts from our Parent BU, which is as far I know the only BU where you can run an Automation with Data Extract "Contacts without Channel Addresses".
The Problem I am getting is that the Record Count of this Data Extract is 0, I have 1 million Contacts and run a query to get my Subscribers which are around 400.000.
FROM _Subscribers s
Why is the Data extract "Contacts without Channel Addresses" not showing me the 600.000 Contacts that do not have any channel?
PS: I took into account the 24h run advice without any success.