# Does gateway tag change script work with UDT instances?

**URL:** <https://forum.inductiveautomation.com/t/does-gateway-tag-change-script-work-with-udt-instances/115178>\
**Category:** Ignition\
**Tags:** ignition83\
**Created:** [April 21, 2026, 12:52pm UTC](https://forum.inductiveautomation.com/t/does-gateway-tag-change-script-work-with-udt-instances/115178 "2026-04-21T12:52:49Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [April 21, 2026, 1:13pm UTC](https://forum.inductiveautomation.com/t/does-gateway-tag-change-script-work-with-udt-instances/115178/2 "2026-04-21T13:13:30Z")

</div>

> [@rohitdas104](#):
>
> non-terminal wildcard

This is new for v8.3, and obviously didn't work right out of the box. 🤷‍♂️

Consider using the following technique:

> [@Java concurrent queue for tag change scripts](https://forum.inductiveautomation.com/t/topic/82044):
>
> Continuing the discussion from [[SOLVED] Are tag Value Changed scripts running asynchronously?](https://forum.inductiveautomation.com/t/solved-are-tag-value-changed-scripts-running-asynchronously/68704/5): We've got code in our standard library that I need to log a value change on a tag and then associate various data points with that value change. The value is located in a UDT, and because this is part of our "standard" library we use for our customers, the number of tags is variable and quite possibly numerous so having a gateway tag event script isn't feasible for this solution. I was reading up on …

---

_[View the full topic](https://forum.inductiveautomation.com/t/does-gateway-tag-change-script-work-with-udt-instances/115178)._