Is there a Marketo Launchpoint integration with Google Analytics? Currently, the vast majority of email traffic is not being attributed to email in GA, rather being recorded as referral traffic.
There is nothing out of the box. Courtney Grimes wrote a lot on this in this community.
the way we usually proceed is more and more through sharog IDs between Marketo and Analytics and reconciling the values outside of both systems, in a Datawarehouse.