# Expression and runScript problem

**URL:** <https://forum.inductiveautomation.com/t/expression-and-runscript-problem/98666>\
**Category:** Ignition\
**Tags:** perspective\
**Created:** [November 15, 2024, 3:21pm UTC](https://forum.inductiveautomation.com/t/expression-and-runscript-problem/98666 "2024-11-15T15:21:39Z")\
**Posts on this page:** 1\
**Showing post:** 9

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**Author:** ![dkhayes117](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/dkhayes117/32/68344_2.png) [@dkhayes117](https://forum.inductiveautomation.com/u/dkhayes117)\
**Post date:** [November 15, 2024, 3:52pm UTC](https://forum.inductiveautomation.com/t/expression-and-runscript-problem/98666/9 "2024-11-15T15:52:44Z")

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The project script must exist in your project that is designated as your _ **global scripting project** _ because tag expressions evaluate on the gateway. Scripts in other projects cannot be directly called from the gateway scope.

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