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HubSpot Developer Changelog

Upcoming Sunset: Calendar API

Note: This post has been updated to reflect an updated sunset date of August 31. The original date for this was July 28.

We are sunsetting the Calendar API. Beginning on August 31, the API will no longer function, and data from the marketing calendar will no longer be available via API.

This sunset will affect all of the endpoints for the Calendar API:


Why is this happening?

The Calendar API is out of date, both compared to our newer v3 APIs, as well as compared to the current functionality of the marketing calendar. There are new types of marketing tasks that are not supported with the API, and limitations of the API mean that they cannot be added. 

Please note that this API is only used for getting marketing tasks from the marketing calendar, and is unrelated to sales tasks or engagements that will continue to be available through the CRM API.


When is this happening?

The Calendar API will be sunset on August 31, 2023, after which the API will be shut down, and marketing calendar data will no longer be available through the API.


Please let us know if you have any questions by joining the discussion in our community.