I am putting a Google Analytics 360 Data Extension as an entry source for a journey on SFMC. It works fine, but when I try to filter by email address it doesn't work. Does anyone know about the mapping with email addresses when using GA360. Has anyone else had this problem? Thanks.

1 Answer 1


Maybe this will be helpful: enter image description here Since GA360 only passes the IDs of the subscribers, my best guess is that it matches the emails addresses with the All Subscribers list or the root Data Extension in your contact model?

I would check the contact model, and if needed, create an automation that queries either All Subscribers list or the root DE and replicates all IDs and email addresses to another Data Extension, which you could then link in Data Designer to your GA360 DE.

  • Thanks @codeRage very helpful! Jul 31, 2019 at 2:02
  • helpful. Thank you.
    – Frogmouth
    Feb 24, 2020 at 12:23
  • @zuzannamj thanks a TON for sharing the illustrative diagram, very helpful to understand how the Intergration works. Jun 24, 2020 at 5:04
  • @zuzannamj, does this mean that when using Google Analytics 360 Audience as the Entry source - we don't "risk" getting new contacts? (Because only existing Marketing Cloud contacts will flow back?) I say risk - because new contacts will have to have SubscriberKeys generated which will not match their ContactId from MC Connect.
    – LimeWeb
    Apr 16, 2021 at 19:03
  • 1
    Found an answer to my second question here: help.salesforce.com/…; indeed it is appended to a url, and then it is added to a Cookie with a GA-generated ClientID. help.salesforce.com/… This answers the first question also - only contacts who clicked a specific link which contains the sfmc_id will be tracked and usable back in MC. So no new contacts. Can anyone confirm the above?
    – LimeWeb
    Apr 16, 2021 at 19:24

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