# Ui Extensions app with settings

**URL:** <https://community.hubspot.com/t/ui-extensions-app-with-settings/141892>\
**Category:** APIs & Integrations\
**Tags:** professional\
**Created:** [October 31, 2025, 11:17am UTC](https://community.hubspot.com/t/ui-extensions-app-with-settings/141892 "2025-10-31T11:17:43Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![tejooo](https://avatars.discourse-cdn.com/v4/letter/t/87869e/32.png) [@tejooo](https://community.hubspot.com/u/tejooo)\
**Post date:** [October 31, 2025, 11:17am UTC](https://community.hubspot.com/t/ui-extensions-app-with-settings/141892/1 "2025-10-31T11:17:43Z")

</div>

Hi developers,

I’m new into the hubspot development and worked my way through the new UI extension the last days. Created an app getting deal information from a 3rd party API and presenting it in a card.  
Now I have some constants (base url, token, checkbox autoload) that I want to save in settings. I got the fields in the setting page, but there seems to be no way to save these settings in Hubspot.

 ![tejooo_0-1761909160163.png](https://d2qpr2jzcazej7.cloudfront.net/original/3X/e/a/ea791d674ce70986bdacd9dcb39c060a19ef9640.png)

Documentation says this:

- Use hubspot.fetch to leverage your backend to save and retrieve settings. Learn more about using this approach in the legacy documentation.

But legacy is not working in the new UI extensions right? I want hubspot to save these settings. Any idea somebody?

---

<div class="post-metadata">

**Author:** ![felixmacaspac](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/felixmacaspac/32/33923_2.png) [@felixmacaspac](https://community.hubspot.com/u/felixmacaspac)\
**Post date:** [November 1, 2025, 3:36pm UTC](https://community.hubspot.com/t/ui-extensions-app-with-settings/141892/2 "2025-11-01T15:36:17Z")

</div>

Hi @tejooo have you included the API URLs in your permittedUrls inside the app configuration?

---

<div class="post-metadata">

**Author:** ![tejooo](https://avatars.discourse-cdn.com/v4/letter/t/87869e/32.png) [@tejooo](https://community.hubspot.com/u/tejooo)\
**Post date:** [November 4, 2025, 7:46am UTC](https://community.hubspot.com/t/ui-extensions-app-with-settings/141892/3 "2025-11-04T07:46:40Z")

</div>

Yes I did, the fetching of the 3rd party data is working, it’s only for the setting feature that I can’t find a working solution

---

<div class="post-metadata">

**Author:** ![Jaycee\_Lewis](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/jaycee_lewis/32/61352_2.png) [@Jaycee\_Lewis](https://community.hubspot.com/u/Jaycee_Lewis)\
**Post date:** [November 3, 2025, 11:21pm UTC](https://community.hubspot.com/t/ui-extensions-app-with-settings/141892/4 "2025-11-03T23:21:38Z")

</div>

Hey, @tejooo 👋 Just checking in. Did you make any progress on this front? — Jaycee