Airbyte OSS giving following error while Syncing HubSpot to BigQuery for US Multi region airbyte giving following error : PUT https://bigquery.googleapis.com/upload/bigquery/v2/projects/Project-id/jobs?uploadType=resumable&upload_id=AJ5rDhGJOESw6Xv6VomG4ALzz7QndQVRvnEGtN5pHjff9ETNZs2nUet-ac-Oj2pchOK_X5355pnjGS1ei97MpS7dJVC9bzRdXAhbatjySq4tBWY { "error": { "code": 400, "message": "Request had invalid euc header.", "errors": [ { "message": "Request had invalid euc header.", "domain": "global", "reason": "invalid" } ], "status": "INVALID_ARGUMENT" } } , streamResults={Descriptor(namespace=null, name=owners)=StreamProcessingFailed(streamException=com.google.cloud.bigquery.BigQueryException: 400 Bad Request PUT https://bigquery.googleapis.com/upload/bigquery/v2/projects/Project-id/jobs?uploadType=resumable&upload_id=AJ5rDhGJOESw6Xv6VomG4ALzz7QndQVRvnEGtN5pHjff9ETNZs2nUet-ac-Oj2pchOK_X5355pnjGS1ei97MpS7dJVC9bzRdXAhbatjySq4tBWY { "error": { "code": 400, "message": "Request had invalid euc header.", "errors": [ { "message": "Request had invalid euc header.", "domain": "global", "reason": "invalid" } ], "status": "INVALID_ARGUMENT" } } ),

BigQuery "Invalid EUC Header" Error (HubSpot → BigQuery Sync) The error you're seeing:

400 Bad Request
PUT https://bigquery.googleapis.com/upload/bigquery/v2/projects/.../jobs?uploadType=resumable
"message": "Request had invalid euc header."
"status": "INVALID_ARGUMENT"

is a known issue with the Airbyte BigQuery destination connector. [GitHub Issue #72307] What's Happening EUC = End-User Credentials. The "invalid euc header" error strongly suggests that authentication tokens are expiring or becoming invalid during long-running resumable uploads to BigQuery. The connector retries, but the retries may not successfully commit checkpoints, causing the sync to repeatedly process the same data without advancing. [GitHub Issue #72307] This is particularly common when: • Syncing large datasets (many records/properties) • Syncs run for extended periods (hours) • Using resumable upload mode to BigQuery Suggested Workarounds 1. Upgrade to BigQuery destination v3.0.1+ — This version implements a new Direct Load paradigm that avoids the traditional raw table staging approach and may be less susceptible to this issue. Note this is a breaking change, so review the BigQuery Migration Guide before upgrading. [GitHub Issue #62090] 2. Reduce the number of streams/properties synced — If your HubSpot instance has many custom properties (e.g., 380+), try unchecking unneeded properties in the stream configuration to reduce payload size. [GitHub Issue #62090] 3. Check your GCP service account credentials — Ensure the service account key used for BigQuery authentication is valid and has not expired. Rotating or re-issuing the credentials may help. 4. Use GCS Staging — Older versions of the connector had a recommendation to use GCS staging for long-running syncs to avoid credential timeout issues during direct uploads. [Airbyte Forum] Current Status This is an open issue being tracked at GitHub Issue #72307 and has been escalated to the Airbyte destinations team as P1 priority. The root cause investigation is focused on token refresh behavior during long-running resumable uploads. If you're on Airbyte Cloud, I'd recommend reaching out to Airbyte support directly and referencing issue #72307. 👍 0 button 👎 0 button ℹ️ Tip: Mention @kapa.ai in the thread for follow-ups or DM the app for 1-to-1 help.