# Tag Value Change Event Issue

**URL:** <https://forum.inductiveautomation.com/t/tag-value-change-event-issue/79871>\
**Category:** Ignition\
**Created:** [September 29, 2023, 7:34pm UTC](https://forum.inductiveautomation.com/t/tag-value-change-event-issue/79871 "2023-09-29T19:34:19Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![Transistor](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/transistor/32/3380_2.png) [@Transistor](https://forum.inductiveautomation.com/u/Transistor)\
**Post date:** [September 29, 2023, 7:39pm UTC](https://forum.inductiveautomation.com/t/tag-value-change-event-issue/79871/2 "2023-09-29T19:39:47Z")

</div>

I think you should be able to check the tag's quality and exit the script if isGood is false.

> [@How to read tag's quality on change event?](https://forum.inductiveautomation.com/t/how-to-read-tags-quality-on-change-event/59813/4):
>
> isGood and other methods are available (in some circumstances, at least) in autocompletion in 8.1.18:

---

_[View the full topic](https://forum.inductiveautomation.com/t/tag-value-change-event-issue/79871)._