@AngusWonde - see recent thread on similar issues. https://community.hubspot.com/t5/APIs-Integrations/Contact-batch-upsert-endpoint/td-p/1008345
Seems likely that something is broken here.
Steve
@AngusWonde - see recent thread on similar issues. https://community.hubspot.com/t5/APIs-Integrations/Contact-batch-upsert-endpoint/td-p/1008345
Seems likely that something is broken here.
Steve