HubSpot Developer Changelog

This post serves as an update to the previous post on the lifecycle stage in ...

Note: This post has been updated to reflect the new date that the changes will go live. The changes to the legacy v2 Forms API will now go into effect on March 19, 2024. For the changes to the

We're adding additional rate limit protection to our Forms Submissions APIs. This new rate limit would only apply after the current standard rate limits are reached.

What's changing? We'll be adding new validation to our Forms API. This validation will require that any fields being used in a form match with a corresponding CRM property. The name of the field must match the name of a CRM property for ...

This is a reminder for our developer community that from March 21st, 2022 we will be rejecting any form submissions that submit fields that aren’t present on a form. Plus any submissions that are missing fields that are required on a form. ...

Update: We recently released an amendment to this validation, please see this amendment here:

The “skipValidation” optional parameter for the v3 form submission endpoint will be deprecated today, August 26th 2021.

New Rate Limits for the Existing Form Submission Endpoints will be introduced on July 13th 2021.

To improve HubSpot’s platform security and performance we are announcing new rate limits for the existing Forms API submission endpoints plus two new authenticated submission endpoints.

We are continuing to build the next generation of HubSpot’s APIs to provide the consistency and completeness our developer community needs. Today, we are excited to announce that a refreshed