Fix HubSpot 414 and 400 Request Size Errors - Skyvia

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

Overview

The errors 414 Request-URI Too Large and 400 Request Header or Cookie Too Large are returned by the HubSpot API when a single API request exceeds the maximum allowed size. This typically occurs when querying HubSpot objects that have a large number of custom fields - the field list becomes too long to fit in a single HTTP request.

Affected Objects

This issue most commonly occurs with the following HubSpot objects:

  • ContactListContacts
  • Contacts
  • Deals

Resolution

Column-wise chunking splits large requests into smaller chunks by grouping fields into separate API calls. This is the most reliable fix for this error.

To enable:

  1. Go to Skyvia → Connections.
  2. Find and open your HubSpot connection.
  3. Click Edit.
  4. Scroll down and open Advanced Settings.
  5. Enable Column-wise chunking.
  6. Click Save and retry the operation.

For details, see Column-wise chunking documentation.

Option 2: Reduce the number of fields

Alternatively, exclude unnecessary fields from your query, replication, backup, or export. Fewer fields result in a smaller request size and may resolve the error without enabling chunking.

Other HubSpot Objects

If this error occurs with an object not listed above, please contact Skyvia Support. We can extend Column-wise chunking support to additional objects.