# Category Variable?

**URL:** <https://forum.mautic.org/t/category-variable/21953>\
**Category:** Product Support\
**Tags:** mautic-3\
**Created:** [December 9, 2021, 3:13pm UTC](https://forum.mautic.org/t/category-variable/21953 "2021-12-09T15:13:33Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![nydamon](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/nydamon/32/343_2.png) [@nydamon](https://forum.mautic.org/u/nydamon)\
**Post date:** [December 9, 2021, 3:13pm UTC](https://forum.mautic.org/t/category-variable/21953/1 "2021-12-09T15:13:33Z")

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My Mautic version is: v3.2.1  
My PHP version is: 7.3.25  
My Database type and version is:

My problem is: i am testing passing categories (sendgrid) via headers in emails. does anyone know if there is a mautic category variable that i can use to dynamically populate the Mautic Category the email is assigned to in the header?

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**Author:** ![musashi1](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/musashi1/32/7564_2.png) [@musashi1](https://forum.mautic.org/u/musashi1)\
**Post date:** [May 17, 2022, 9:58pm UTC](https://forum.mautic.org/t/category-variable/21953/2 "2022-05-17T21:58:30Z")

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Same question here. Is there any chance to send categories to sendgrid API ¿?