HubSpot: 414 Request-URI Too Large & 400 Request Header or Cookie Too Large

HubSpot: 414 Request-URI Too Large & 400 Request Header or Cookie Too Large

This error occurs when the object you are querying contains too many custom fields.

To resolve this issue for ContactListContacts, Contacts, and Deals objects, enable the Column-wise chunking option in the HubSpot connection editor (located under Advanced Settings). Alternatively, you can exclude some fields from your query, replication, backup, or export—depending on where the error occurs.


If this error occurs with other HubSpot objects, please contact our support team. We can extend the Column-wise chunking option to support them as well.

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