# Need some help for create custom expectations with v3 api for sqlalchemy

**URL:** <https://discourse.greatexpectations.io/t/need-some-help-for-create-custom-expectations-with-v3-api-for-sqlalchemy/789>\
**Category:** Archive\
**Tags:** how-to\
**Created:** [June 14, 2021, 3:21pm UTC](https://discourse.greatexpectations.io/t/need-some-help-for-create-custom-expectations-with-v3-api-for-sqlalchemy/789 "2021-06-14T15:21:24Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Naud](https://avatars.discourse-cdn.com/v4/letter/n/7ab992/32.png) [@Naud](https://discourse.greatexpectations.io/u/Naud)\
**Post date:** [June 14, 2021, 3:21pm UTC](https://discourse.greatexpectations.io/t/need-some-help-for-create-custom-expectations-with-v3-api-for-sqlalchemy/789/1 "2021-06-14T15:21:24Z")

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Hi everyone, I’m a new user of GE and I want to extend the expectation suites by creating custom expectations for relational databases with the v3 api.  
I’m getting a little lost in the initial documentation I’ll need a little help to get started such as critcal exemples.