# UDT Dynamic Roll-Up Calculation

**URL:** <https://forum.inductiveautomation.com/t/udt-dynamic-roll-up-calculation/63296>\
**Category:** Ignition\
**Created:** [August 22, 2022, 9:17pm UTC](https://forum.inductiveautomation.com/t/udt-dynamic-roll-up-calculation/63296 "2022-08-22T21:17:35Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\
**Post date:** [August 22, 2022, 9:35pm UTC](https://forum.inductiveautomation.com/t/udt-dynamic-roll-up-calculation/63296/2 "2022-08-22T21:35:33Z")

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This is a feature request we have percolating, but haven't yet implemented: [Tag Alarm Aggregation | Voters | Inductive Automation](https://ideas.inductiveautomation.com/ignition-features-and-ideas/p/tag-alarm-aggregation)

There's some more discussion in this thread:

> [@\[IGN-4921\]Alarm Aggregation/Summary](https://forum.inductiveautomation.com/t/ign-4921-alarm-aggregation-summary/52169):
>
> Hi, I would like to know what the best way is to get a summary of the alarms on a UDT. What I need is the highest priority active alarm (for a colour around the UDT symbol) and if there are any unacknowledged alarms (to blink). I need to do this for about 50 UDTs on a page with about 100 clients active. I see the following options: Use an expression tag on the UDT that monitors all configured alarms and presents a summary integer (priority code and negative if unacked). Similar to below: if…

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_[View the full topic](https://forum.inductiveautomation.com/t/udt-dynamic-roll-up-calculation/63296)._