# Building audiences from collection and search views on Hydrogen

Asked by karim_b on 2026-07-11. Tags: shopify, hydrogen, audiences, events.

The Hydrogen SDK is installed and in the dashboard I can already see these
events flowing:

- product views
- collection views
- search views
- cart views and cart updates

I want an audience of shoppers who searched or browsed a category heavily
within the current session, so we can surface a category-specific promo on the
home page before they leave. What is the right way to express "heavily this
session" from the events I already have

## 1 answer

### Answer from tomasz_w (2026-07-12)

You have everything you need already. Collection and search views are part of
the auto events the SDK picks up from Shopify's storefront analytics, and they
feed both interest signals and session activity on the profile.

For "heavily this session" I would combine two kinds of conditions:

1. Session activity, using the session stats:

   ```
   session's stats' pageviews > 3
   ```

2. Interest, which the category browsing builds up:

   ```
   user has shown interest in ["headphones"]
   ```

Together: an active session AND demonstrated interest in the category. Tune the
pageview threshold against your traffic with the audience estimator before
going live.

On timing: audiences evaluate per interaction, so as soon as a shopper crosses
the threshold mid-session, the next page they open (including the home page)
serves the promo. No batch delay, the promo can appear within the same browsing
session, which is what you want for a leave-before-buying pattern.