This endpoint is used to create a group of contacts or update existing ones. Performance is best when batch size is limited to 100 contacts or fewer. Use case for this endpoint: It’s particularly useful for periodic syncs from another contacts database to HubSpot. When using this endpoint, please keep in mind that any errors with a single contact in your batch will prevent the entire batch from processing. If this happens, we’ll return a 400 response with additional details as to the cause. Note: Changes made through this endpoint are processed asynchronously, so can take several minutes for changes to be applied to contact records. Note: The batch size should not exceed 1000 contacts per request.
A string that allows you to represent these change sources however you'd like.
List of contacts to create or update.
Successful response - This endpoint is used to create a group of contacts or update existing ones
The response is of type object
.