# Custom Document Type Validator

**URL:** <https://community.bloomreach.com/t/custom-document-type-validator/2336>\
**Category:** Experience Manager (PaaS/OnPrem)\
**Created:** [January 21, 2021, 5:11am UTC](https://community.bloomreach.com/t/custom-document-type-validator/2336 "2021-01-21T05:11:44Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Jaimin\_Patel](https://yyz1.discourse-cdn.com/flex027/user_avatar/community.bloomreach.com/jaimin_patel/32/446_2.png) [@Jaimin\_Patel](https://community.bloomreach.com/u/Jaimin_Patel)\
**Post date:** [January 21, 2021, 5:11am UTC](https://community.bloomreach.com/t/custom-document-type-validator/2336/1 "2021-01-21T05:11:44Z")

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Hi, I have a dropdown in the document type and some fields are mandatory based on the dropdown selection. Hence I’m trying to create custom document type validator. which project I should be adding validator class?

when adding to site, it can’t find the org.onehippo.cms.services.validation.api.Validator class.

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<div class="post-metadata">

**Author:** ![Jaimin\_Patel](https://yyz1.discourse-cdn.com/flex027/user_avatar/community.bloomreach.com/jaimin_patel/32/446_2.png) [@Jaimin\_Patel](https://community.bloomreach.com/u/Jaimin_Patel)\
**Post date:** [February 4, 2021, 4:52pm UTC](https://community.bloomreach.com/t/custom-document-type-validator/2336/2 "2021-02-04T16:52:14Z")

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refer: [ERROR:Missing dependency hippo-repository - #4 by Jaimin\_Patel](https://community.bloomreach.com/t/error-missing-dependency-hippo-repository/1443/4)