# Unknown Quality when Referencing an Alias Tag

**URL:** <https://forum.inductiveautomation.com/t/unknown-quality-when-referencing-an-alias-tag/15902>\
**Category:** Ignition\
**Tags:** ignition79\
**Created:** [November 6, 2017, 6:56pm UTC](https://forum.inductiveautomation.com/t/unknown-quality-when-referencing-an-alias-tag/15902 "2017-11-06T18:56:34Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![kruse.andrew](https://avatars.discourse-cdn.com/v4/letter/k/919ad9/32.png) [@kruse.andrew](https://forum.inductiveautomation.com/u/kruse.andrew)\
**Post date:** [November 6, 2017, 6:56pm UTC](https://forum.inductiveautomation.com/t/unknown-quality-when-referencing-an-alias-tag/15902/1 "2017-11-06T18:56:34Z")

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For whatever reason, when referencing an alias Tag in my UDT it shows a data quality of “Unknown” in the implementation. However in a different gateway and project the same style of reference is being created and the data quality shows up as good. Is this a bug? Anyone else having this issue? I made a work-around with just direct referencing in the ladder, but I’d like to know why this works on one gateway and not another.