UTM tracking can be very useful for sending detailed information and data to Google Analytics about where site traffic and visits are coming from.
Instant's Klaviyo integration leverages Klaviyo's flows, and therefore merchants can use Klaviyo's native integration into Google Analytics for UTM tracking.
By adding UTM tracking to emails sent from Instant Audiences flows, you will be able to track conversions from Instant Audiences flows in Google Analytics.
To understand how to use UTM tracking for Instant Audiences flows, please refer to the following help article from Klaviyo titled "How to add UTM tracking to campaigns and flows" - https://help.klaviyo.com/hc/en-us/articles/360053921252.
The relevant sections from Klaviyo, are:
To understand UTM tracking in Klaviyo, please refer to the following help article from Klaviyo titled "Understanding UTM tracking in Klaviyo" - https://help.klaviyo.com/hc/en-us/articles/115005247808
Please refer to Google analytics' support documentation for any further clarification regarding questions or issues related to your Google Analytics account or setup.