# Why User Sessions is empty ?

**URL:** <https://community.dynatrace.com/t/why-user-sessions-is-empty/54766>\
**Category:** Real User Monitoring\
**Tags:** real-user-monitoring, user-sessions\
**Created:** [January 27, 2026, 6:28pm UTC](https://community.dynatrace.com/t/why-user-sessions-is-empty/54766 "2026-01-27T18:28:56Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![lfoltran](https://avatars.discourse-cdn.com/v4/letter/l/c6cbf5/32.png) [@lfoltran](https://community.dynatrace.com/u/lfoltran)\
**Post date:** [January 27, 2026, 6:28pm UTC](https://community.dynatrace.com/t/why-user-sessions-is-empty/54766/1 "2026-01-27T18:28:56Z")

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Acessing Dynatrace trough “User & Sessions” show no data.  
Which means that “fetch user.sessions” is empty in dashboards/notebooks.

But why acessing “Sessions Query” provide me all data ?

The web application is manual instrumented with JavaScript Snippet.

Any thoughts ?

 ![Screenshot 2026-01-27 at 15.26.46.png](https://global.discourse-cdn.com/dynatrace/original/3X/e/b/ebc885862697462082a00393fb9352b39f3ab776.png)  
 ![Screenshot 2026-01-27 at 15.27.09.png](https://global.discourse-cdn.com/dynatrace/original/2X/e/e4a6bf8e6ac0fcdd1331bdfa1267b58fda3033db.png)

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**Author:** ![p\_devulapalli](https://dub1.discourse-cdn.com/dynatrace/user_avatar/community.dynatrace.com/p_devulapalli/32/41590_2.png) [@p\_devulapalli](https://community.dynatrace.com/u/p_devulapalli)\
**Post date:** [January 27, 2026, 9:57pm UTC](https://community.dynatrace.com/t/why-user-sessions-is-empty/54766/2 "2026-01-27T21:57:46Z")

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[@lfoltran](https://community.dynatrace.com/user/100131)&nbsp;You might need to have the below enabled for the app to have the data queried from Grail

> **[Enable RUM for your RUM Classic web applications](https://docs.dynatrace.com/docs/observe/digital-experience/rum/web-frontends/initial-setup/enable-new-rum-for-web-apps)**
>
> Learn how to enable RUM for your RUM Classic web applications

 ![p_devulapalli_0-1769550980173.png](https://global.discourse-cdn.com/dynatrace/original/3X/a/e/ae65eda7f6fe387046b90d9a15636868cc343704.png)

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**Author:** ![manos-saratsis](https://avatars.discourse-cdn.com/v4/letter/m/82dd89/32.png) [@manos-saratsis](https://community.dynatrace.com/u/manos-saratsis)\
**Post date:** [January 28, 2026, 8:50am UTC](https://community.dynatrace.com/t/why-user-sessions-is-empty/54766/3 "2026-01-28T08:50:41Z")

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[@lfoltran](https://community.dynatrace.com/user/100131)&nbsp;thx. Your tenant needs to be Grail eligible and then within the Experience Vitals app, go to your frontend settings, go to enablement and cost control and make sure both RUM classic and RUM are enabled with a capture rate higher than 0%. Then you should be able to see sessions either in the Users and Sessions app or in Notebooks when fetching user.sessions

 ![Screenshot 2026-01-28 at 09.49.07.png](https://global.discourse-cdn.com/dynatrace/original/2X/3/3b7e14e8350a2b9cb45c07267191ebae576cd179.png)

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<div class="post-metadata">

**Author:** ![lfoltran](https://avatars.discourse-cdn.com/v4/letter/l/c6cbf5/32.png) [@lfoltran](https://community.dynatrace.com/u/lfoltran)\
**Post date:** [January 28, 2026, 5:42pm UTC](https://community.dynatrace.com/t/why-user-sessions-is-empty/54766/4 "2026-01-28T17:42:50Z")

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You were right, I just had classic enabled.  
I´ve enabled according the images and now it´s showing up.  
Thanks for helping me.