Hightouch Warehouse Sync Logs — Per-Row Sync Observability (2026)

Official Hightouch Warehouse Sync Logs documentation. Original queue URL (/docs/syncs/monitoring) returned 404; docs restructured to /docs/syncs/warehouse-sync-logs.

Key facts surfaced (2026-05-20):

• Writes a corresponding warehouse row for every record processed during a sync, including status and error details.
• Enables: error categorization via regex, filtering previously failed rows from models via JOIN, aggregating sync history to identify data integrity issues, visualizing row changes over time.
• Analysis via SQL or BI tools — track audience membership entry/exit, identify common failures, maintain current audience membership records.
• Requirements: Business tier plan + Lightning sync engine enabled + write permissions to hightouch_audit schema.
• Supported warehouses: Redshift, Databricks, BigQuery, Greenplum, PostgreSQL, Snowflake.
• Curriculum reference: row-level sync validation for validate-real-time-audience-segment-delivery node (Module 13).