# How to invoke custom Expectations without a Datasource

**URL:** <https://discourse.greatexpectations.io/t/how-to-invoke-custom-expectations-without-a-datasource/208>\
**Category:** Archive\
**Tags:** how-to, help-wanted\
**Created:** [May 28, 2020, 2:20pm UTC](https://discourse.greatexpectations.io/t/how-to-invoke-custom-expectations-without-a-datasource/208 "2020-05-28T14:20:14Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![kyle](https://yyz1.discourse-cdn.com/flex031/user_avatar/discourse.greatexpectations.io/kyle/32/18_2.png) [@kyle](https://discourse.greatexpectations.io/u/kyle)\
**Post date:** [May 28, 2020, 2:20pm UTC](https://discourse.greatexpectations.io/t/how-to-invoke-custom-expectations-without-a-datasource/208/1 "2020-05-28T14:20:14Z")

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This article is for comments to: [https://docs.greatexpectations.io/en/latest/how\_to\_guides/creating\_and\_editing\_expectations/how\_to\_invoke\_custom\_expectations\_without\_a\_datasource.html](https://docs.greatexpectations.io/en/latest/how_to_guides/creating_and_editing_expectations/how_to_invoke_custom_expectations_without_a_datasource.html)

Please comment +1 if this How to is important to you.