# Building a GA4 exploration report with Croct audience and variant dimensions

Asked by Carmen Ruiz on 2024-11-19. Tags: ga4, analytics, reporting.

Hi all! We connected the Croct export to our GA4 property last week and the data
is flowing in. Now I want to build a free-form exploration comparing engagement
rate and average session duration across our Croct audiences.

My question is about the exploration builder itself. When I open Variables and
look for dimensions to import, what exactly does Croct send over? Is it just the
audience, or also experimants and variants? And do I drag them into rows like any
other dimension, or is there something special about how they arrive?

Thanks in advance!

## 1 answer

### Answer from Priya Raghavan (2024-11-19)

The export streams four things about each visitor: the audiences they fit, the
experiences that impacted them, the experiments they participated in, and the
variants they were assigned. All of it arrives as event data, so in the
exploration builder you import those as dimensions like anything else and drag
them into rows or breakdowns.

For your use case: put the audience dimension in rows, then engagement rate and
average session duration as metrics. You can also add the variant dimension as
a breakdown if you want to slice an experiment inside a given audience. Once
the connection is live, any GA4 report or exploration can be segmented by
these Croct dimensions.

One practical tip: GA4 groups high-cardinality dimension values under
"(other)". If your team names audiences and variants with long generated
strings or creates lots of one-off audiences, the exploration will start
collapsing them. Keep the naming tidy and prune audiences you no longer use
and the reports stay readable.