I’m still struggling with this issue. I need to record on a field, for the user account, the sources of his original first access to the site.
I’m using Adwords to drive traffic and tracking the access using the ?utm_source=google&utm_medium=cpc&utm_campaign=landingv1 UTM tags.
Pantheon is stripping these out and replacing with the “PANTHEON_STRIPPED”. All good in Google Analytics and Adword tracking, but I’m stuck at not being able to use the parameters in the account creation.