# Generate custom fields from external source

**URL:** <https://community.prismic.io/t/generate-custom-fields-from-external-source/16384>\
**Category:** Developing with Prismic\
**Created:** [July 24, 2024, 4:11pm UTC](https://community.prismic.io/t/generate-custom-fields-from-external-source/16384 "2024-07-24T16:11:44Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![robert.r.peterson](https://avatars.discourse-cdn.com/v4/letter/r/5fc32e/32.png) [@robert.r.peterson](https://community.prismic.io/u/robert.r.peterson)\
**Post date:** [July 24, 2024, 4:11pm UTC](https://community.prismic.io/t/generate-custom-fields-from-external-source/16384/1 "2024-07-24T16:11:44Z")

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## Describe your question/issue in detail

Is there a way to generate custom fields from an external source, or from a static file?

Ideally, I'd like to be able to create a field interface where my users could select from a list of content items _from another CMS source._ Ideally, I'd like to be able to hit an endpoint from this external source and then loop it into a custom field in Prismic, such as a dropdown.

I could also upload a TXT/JSON file with this information to generate the field data.

Is there any way to do this?

Thank you!

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**Author:** ![Phil](https://dub1.discourse-cdn.com/flex013/user_avatar/community.prismic.io/phil/32/14_2.png) [@Phil](https://community.prismic.io/u/Phil)\
**Post date:** [July 25, 2024, 9:26am UTC](https://community.prismic.io/t/generate-custom-fields-from-external-source/16384/2 "2024-07-25T09:26:11Z")

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Hi Robert,

It kind of sounds like you're describing integration fields:

> **[Integration](https://prismic.io/docs/integration)**
>
> This article explains how to integrate with third party services using Prismic's integration field.

Is that right?

Thanks.

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**Author:** ![robert.r.peterson](https://avatars.discourse-cdn.com/v4/letter/r/5fc32e/32.png) [@robert.r.peterson](https://community.prismic.io/u/robert.r.peterson)\
**Post date:** [July 30, 2024, 4:47pm UTC](https://community.prismic.io/t/generate-custom-fields-from-external-source/16384/3 "2024-07-30T16:47:37Z")

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Hi there! That's exactly what I'm looking for, and I do not yet have that enabled in my repo.

Sorry to bug you, but can you enable integration fields on my project repo? I'll send an email too!

Huge thanks!!

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**Author:** ![Phil](https://dub1.discourse-cdn.com/flex013/user_avatar/community.prismic.io/phil/32/14_2.png) [@Phil](https://community.prismic.io/u/Phil)\
**Post date:** [July 31, 2024, 8:48am UTC](https://community.prismic.io/t/generate-custom-fields-from-external-source/16384/4 "2024-07-31T08:48:25Z")

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Hi Robert,

If you fill out this support form it will automatically activate integration fields on your repository.

[https://prismic.atlassian.net/servicedesk/customer/portal/1/create/139](https://prismic.atlassian.net/servicedesk/customer/portal/1/create/139)

Thanks.

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<div class="post-metadata">

**Author:** ![robert.r.peterson](https://avatars.discourse-cdn.com/v4/letter/r/5fc32e/32.png) [@robert.r.peterson](https://community.prismic.io/u/robert.r.peterson)\
**Post date:** [August 15, 2024, 4:31pm UTC](https://community.prismic.io/t/generate-custom-fields-from-external-source/16384/5 "2024-08-15T16:31:49Z")

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Phil, the Prismic folks took care of this for us. Thank you so much!