We merge user sessions after successful registration. However, our analytics report shows incorrect segmentation by the initial UTM. (“Signed up” user event has no initial_utm, but after merging sessions, the user has initial UTM)
For example, user 10041 is in NONE group for Signed up event, even he has initial_utm_source set up.
How can this be fixed?
![](https://uploads-us-west-2.insided.com/amplitude-en/attachment/600f0acf-ebe0-4a34-85b8-4410be271781.jpg)
![](https://uploads-us-west-2.insided.com/amplitude-en/attachment/6943f753-ad68-4f6a-8b60-9bfb83c77d43.jpg)
![](https://uploads-us-west-2.insided.com/amplitude-en/attachment/a32d1efb-afd6-47c0-8bc2-c619b7475dd2.jpg)