# Calling external API on field change events

**URL:** <https://community.hubspot.com/t/calling-external-api-on-field-change-events/30123>\
**Category:** APIs & Integrations\
**Tags:** developer-tools\
**Created:** [January 13, 2021, 10:43am UTC](https://community.hubspot.com/t/calling-external-api-on-field-change-events/30123 "2021-01-13T10:43:42Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![A\_S](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/a_s/32/31184_2.png) [@A\_S](https://community.hubspot.com/u/A_S)\
**Post date:** [January 13, 2021, 10:43am UTC](https://community.hubspot.com/t/calling-external-api-on-field-change-events/30123/1 "2021-01-13T10:43:42Z")

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We are trying to call the external API from the on change event on contacts.

How do we make it and where to place the script?

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**Author:** ![quentin\_lamamy](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/quentin_lamamy/32/20212_2.png) [@quentin\_lamamy](https://community.hubspot.com/u/quentin_lamamy)\
**Post date:** [January 13, 2021, 3:02pm UTC](https://community.hubspot.com/t/calling-external-api-on-field-change-events/30123/2 "2021-01-13T15:02:30Z")

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Hi [@A\_S](https://community.hubspot.com/t5/user/viewprofilepage/user-id/96959) ,

THe webhook allow you to call an external api on event. it will solve your issue. Here is an blogpost about it : [https://community.hubspot.com/t5/APIs-Integrations/How-to-implement-Webhooks-in-HubSpot-and-how-do-they-differ-from/m-p/356711](https://community.hubspot.com/t5/APIs-Integrations/How-to-implement-Webhooks-in-HubSpot-and-how-do-they-differ-from/m-p/356711)

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<div class="post-metadata">

**Author:** ![quentin\_lamamy](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/quentin_lamamy/32/20212_2.png) [@quentin\_lamamy](https://community.hubspot.com/u/quentin_lamamy)\
**Post date:** [January 18, 2021, 8:24am UTC](https://community.hubspot.com/t/calling-external-api-on-field-change-events/30123/3 "2021-01-18T08:24:46Z")

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Hi [@A\_S](https://community.hubspot.com/t5/user/viewprofilepage/user-id/96959) Does it solve your issue. if yes can your mark this topic as solved ? It help people to know if they can use this topic as reference.