# Can NR be set to trigger on changes in global scope context values?

**URL:** <https://discourse.nodered.org/t/can-nr-be-set-to-trigger-on-changes-in-global-scope-context-values/33826>\
**Category:** General\
**Created:** [6 October 2020 10:25 UTC](https://discourse.nodered.org/t/can-nr-be-set-to-trigger-on-changes-in-global-scope-context-values/33826 "2020-10-06T10:25:02Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![knolleary](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/knolleary/32/3_2.png) [@knolleary](https://discourse.nodered.org/u/knolleary)\
**Post date:** [6 October 2020 10:44 UTC](https://discourse.nodered.org/t/can-nr-be-set-to-trigger-on-changes-in-global-scope-context-values/33826/3 "2020-10-06T10:44:47Z")

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Hi @Boja

no, it is not possible to trigger an event when a context value changes.

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_[View the full topic](https://discourse.nodered.org/t/can-nr-be-set-to-trigger-on-changes-in-global-scope-context-values/33826)._