Are you using the full Google Analytics Account # in the Zen Cart Admin > CONFIGURATION > Google Analytics Configuration screen? Example: UA-4563307705-9

When I first setup the configuration I was missing the -9 on the end of the example.

What I found was that while in Google Analytics screen (Edit Account and Data Sharing Settings ) it shows the account as UA-4563307705, but what you really need is the full account# with the -9. Again these numbers I am using the example above.

To confirm this log into Google Analytics, under the settings column click on the EDIT link. On this page there is a Receiving Data Check Status link. Click on that to see the full account #. It will show up in the code.