# Extending the UI Contacts Properties

**URL:** <https://community.hubspot.com/t/extending-the-ui-contacts-properties/31074>\
**Category:** APIs & Integrations\
**Created:** [February 1, 2021, 3:00pm UTC](https://community.hubspot.com/t/extending-the-ui-contacts-properties/31074 "2021-02-01T15:00:16Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![mtal](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/mtal/32/48165_2.png) [@mtal](https://community.hubspot.com/u/mtal)\
**Post date:** [February 1, 2021, 3:00pm UTC](https://community.hubspot.com/t/extending-the-ui-contacts-properties/31074/1 "2021-02-01T15:00:16Z")

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I’m tried to integrate an external button in my contacts view which opens a new window to another internal system that creates our internal report based on the user attributes.

My API URL looks like that:

GET [http://my.domain/v1/publish/report?name=customername&customerattr=antohervalue](http://my.domain/v1/publish/report?name=customername&customerattr=antohervalue)

I want to make sure that each contact will have a button in my CRM which redirects me to this endpoint. Is it possible?

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**Author:** ![dennisedson](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/dennisedson/32/28044_2.png) [@dennisedson](https://community.hubspot.com/u/dennisedson)\
**Post date:** [February 3, 2021, 3:54pm UTC](https://community.hubspot.com/t/extending-the-ui-contacts-properties/31074/2 "2021-02-03T15:54:36Z")

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Hello @mtal

I think you are looking for the [CRM Cards extension](https://developers.hubspot.com/docs/api/crm/extensions/custom-cards) which allows you to to interact with external systems.