# Disabled tag breaking Expression tag expression

**URL:** <https://forum.inductiveautomation.com/t/disabled-tag-breaking-expression-tag-expression/15092>\
**Category:** Ignition\
**Created:** [August 17, 2017, 6:15am UTC](https://forum.inductiveautomation.com/t/disabled-tag-breaking-expression-tag-expression/15092 "2017-08-17T06:15:04Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [August 17, 2017, 10:36pm UTC](https://forum.inductiveautomation.com/t/disabled-tag-breaking-expression-tag-expression/15092/5 "2017-08-17T22:36:47Z")

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> [@jordanv](#):
>
> You can do that with the system.tag.browseTags like this

Careful with this approach. `system.tag.browseTags` is a performance killer and pretty much always hits the internal DB, which cannot be accessed concurrently. Too many scripts/events in the system invoking `browseTags` can make access to the internal DB highly contested and bring down a bunch of other parts of the system.

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