# Workflow Extension Definition

**URL:** <https://community.hubspot.com/t/workflow-extension-definition/23047>\
**Category:** APIs & Integrations\
**Tags:** workflows\
**Created:** [July 17, 2020, 4:45pm UTC](https://community.hubspot.com/t/workflow-extension-definition/23047 "2020-07-17T16:45:01Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![krishna7](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/krishna7/32/58551_2.png) [@krishna7](https://community.hubspot.com/u/krishna7)\
**Post date:** [July 17, 2020, 4:45pm UTC](https://community.hubspot.com/t/workflow-extension-definition/23047/1 "2020-07-17T16:45:01Z")

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Hi Team,

I am currently working on building a new workflow to send sms. I have used workflow extension definition api to achieve this.

 ![29360iDF9BED93C26379C6.png](https://d2qpr2jzcazej7.cloudfront.net/original/3X/e/8/e8dd173dabc427614c45a7e878f39f6590f236db.png)  
I am trying to add a new field Rotate between to the above extension definition.

 ![29361i07B3A54B8B567B9B.jpg](https://d2qpr2jzcazej7.cloudfront.net/original/3X/2/c/2ce0a49ecd9a3aaace8a4abda324e92707c5215a.jpeg)

When i went through the api documentation, the only field types allowed are date, number, select, text, text area, and owner. I cannot see any radio. I have tried to add this section in my new action.

Please let me know a way to bring Rotate between into my action.

Thanks,

Krishna

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**Author:** ![WendyGoh](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/wendygoh/32/42320_2.png) [@WendyGoh](https://community.hubspot.com/u/WendyGoh)\
**Post date:** [July 21, 2020, 6:56am UTC](https://community.hubspot.com/t/workflow-extension-definition/23047/2 "2020-07-21T06:56:14Z")

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Hey @krishna7,

At the moment, these are the supported field type:

- DATE, NUMBER, SELECT, TEXT, TEXTAREA, OWNER

Having said that, our team is working on a new version of the [Automation API | Custom Workflow Actions](https://developers.hubspot.com/docs/api/automation/custom-workflow-actions) and I’d be happy to check in with the internal team to see if radio selection will be part of the new feature. I’ll keep you posted with update here!

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<div class="post-metadata">

**Author:** ![krishna7](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/krishna7/32/58551_2.png) [@krishna7](https://community.hubspot.com/u/krishna7)\
**Post date:** [July 22, 2020, 3:07pm UTC](https://community.hubspot.com/t/workflow-extension-definition/23047/3 "2020-07-22T15:07:48Z")

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Thanks for the update Wendy.

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**Author:** ![WendyGoh](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/wendygoh/32/42320_2.png) [@WendyGoh](https://community.hubspot.com/u/WendyGoh)\
**Post date:** [July 22, 2020, 6:59am UTC](https://community.hubspot.com/t/workflow-extension-definition/23047/4 "2020-07-22T06:59:03Z")

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Hey @krishna7,

I checked in with our team and note that radio select would be one of the new feature included in [Automation API | Custom Workflow Actions](https://developers.hubspot.com/docs/api/automation/custom-workflow-actions).

Currently, this feature is in Alpha. Would you be interested to be part of the Alpha or Beta stages to test out and give feedback? If yes, could you share with me your portal ID and an email address that we can reach you?