There is a HUGE disconnect when managing the agency from a sub-account. We need a way to manage our sub-accounts as an agency. When sub-accounts update their email address/log in email, this does not automatically pull through to the contact inside my sub-account (the one I manage my agency with). I've had an incident recently where important emails were sent to my sub-account clients, but they didn't receive them as the email address associated with their account was no longer the one I had inside my sub-account.
An Agency CRM is a must!!