# Unable to join session using sample app

**URL:** <https://devforum.zoom.us/t/unable-to-join-session-using-sample-app/95941>\
**Category:** Android\
**Tags:** video-sdk\
**Created:** [September 28, 2023, 8:46am UTC](https://devforum.zoom.us/t/unable-to-join-session-using-sample-app/95941 "2023-09-28T08:46:20Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![rehema.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/rehema.zoom/32/40323_2.png) [@rehema.zoom](https://devforum.zoom.us/u/rehema.zoom)\
**Post date:** [October 4, 2023, 3:49pm UTC](https://devforum.zoom.us/t/unable-to-join-session-using-sample-app/95941/4 "2023-10-04T15:49:15Z")

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Hi @sohel-skylark ,

Understood, thank you for clarifying that. Based on another forum post, it seems this issue is related to the `tpc` field of your JWT. It has to match the `sessionName` value provided when trying to join the session. If that is not the case, could you change them to match and let me know if the issue is resolved? [This](https://devforum.zoom.us/t/1507-1508-error-when-creating-session/66041/2) is the mentioned post.

Thanks,  
Rehema

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