# 1507/1508 error when creating session

**URL:** <https://devforum.zoom.us/t/1507-1508-error-when-creating-session/66041>\
**Category:** Android\
**Created:** [March 18, 2022, 12:57pm UTC](https://devforum.zoom.us/t/1507-1508-error-when-creating-session/66041 "2022-03-18T12:57:48Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![jon.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/jon.zoom/32/13495_2.png) [@jon.zoom](https://devforum.zoom.us/u/jon.zoom)\
**Post date:** [March 21, 2022, 7:17pm UTC](https://devforum.zoom.us/t/1507-1508-error-when-creating-session/66041/2 "2022-03-21T19:17:51Z")

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Hi @jernej.jerin, thanks for using our SDK.

Based on the error codes you are seeing, this is related to the `tpc` field of your JWT not matching the `sessionName` value you’ve provided when trying to join the session. The values of these two fields must always be the same.

Thanks!

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