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

Option 1: Enable Column-wise chunking (recommended)

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.

Useful Links

    • Related Articles

    • Query execution timeout exceeded error

      Overview This error occurs when a query takes too long to execute, typically because it processes a large dataset or uses inefficient filters. Resolution Apply WHERE filters to reduce the amount of data being queried. Review and optimize JOINs and ...

    • HubSpot: hapikey Permission Error

      Overview This error is common when working with HubSpot and indicates that the API key (hapikey) used for authentication does not have sufficient permissions to access one or more HubSpot objects. Root Causes The error typically occurs for one of the ...

    • How to Check if a Column Supports Native Filtering in Skyvia

      Overview Filtering helps make your integrations and backups faster and lighter by reducing the amount of data Skyvia pulls from your source. However, not all objects and fields support native filtering. If a column does not support native filters, ...

    • Salesforce Error: "Query is requesting too many junction IDs; limit is 500"

      What Does This Error Mean? This Salesforce error occurs when a SOQL query attempts to retrieve more than 500 junction IDs in a single request. Salesforce enforces a hard API limit of 500 junction IDs per query, and once this limit is exceeded, the ...

    • HubSpot: value was not recognized as a valid DataType errors in Skyvia

      Overview Type conversion errors occur when a value stored in a field does not match the current data type definition. Typical error format: '<value>' was not recognized as a valid <DataType> These errors are generated when the source system returns ...