# Validation condition: answer must be in a set of 500 possible v

**URL:** <https://forum.dimagi.com/t/validation-condition-answer-must-be-in-a-set-of-500-possible-v/8226>\
**Category:** Users\
**Created:** [June 2, 2021, 6:23pm UTC](https://forum.dimagi.com/t/validation-condition-answer-must-be-in-a-set-of-500-possible-v/8226 "2021-06-02T18:23:58Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![zijunliu](https://dimagi.b-cdn.net/letter_avatar_proxy/v4/letter/z/85f322/32.png) [@zijunliu](https://forum.dimagi.com/u/zijunliu)\
**Post date:** [June 2, 2021, 6:23pm UTC](https://forum.dimagi.com/t/validation-condition-answer-must-be-in-a-set-of-500-possible-v/8226/1 "2021-06-02T18:23:59Z")

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Hi, I have a very similar question as this [Lookup table as a validation condition](https://forum.dimagi.com/t/lookup-table-as-a-validation-condition/8039)

It's not answered yet so I'm re-posting here.

Thanks!