Pre-Sync Validation Gate for Postgres-to-HubSpot

The cheapest failure to fix is the one that never reaches the destination. This workflow validates each outbound row from Postgres against your business rules — required fields, email format, enum values, foreign-key existence — before it ever touches HubSpot. Valid rows sync; invalid rows are quarantined upfront with a precise reason, so HubSpot never rejects a malformed batch and your sync success rate stays clean.

Use it when your warehouse data quality is uneven and you'd rather catch bad rows at the gate than chase HubSpot API rejections after the fact. Ideal for teams enforcing a contract on what's allowed to leave the warehouse.

A schedule trigger reads the batch of changed rows from Postgres. A logic step runs each row through the validation ruleset and tags it pass or fail with the violated rule. Passing rows are upserted into HubSpot. Failing rows are written to a Postgres quarantine table annotated with the rule they broke. A Slack digest reports how many rows synced, how many were gated, and a breakdown of which rules fired most.