DATA OPS

Reverse-ETL HubSpot Drop Detector and Auto-Requeue

Detects warehouse rows that failed to land in HubSpot, writes the missing records to a retry table in Postgres.

CategoryData Ops
Enginesim
Difficultyintermediate
Triggerschedule
Steps6
Setup~15 min

How it runs

The automated pipeline, trigger to output.

  • TriggerSchedule fires on sync cadence
  • ActionRead batch source rows from BigQueryGoogle BigQueryBigQuery
  • ActionQuery HubSpot for expected contacts and companiesHubSpotHubSpot
  • LogicCompute source IDs with no HubSpot match
  • ActionInsert missing rows into Postgres retry tablePostgreSQLPostgres
  • OutputSend drop-count metric to AxiomAxiom

What it does

Closes the loop on reverse-ETL drops into HubSpot. It identifies BigQuery source rows that did not produce a matching HubSpot contact or company, stages those records in a Postgres retry table the next sync can pick up, and pushes a count metric to Axiom so you can chart drop rates over time instead of discovering a pattern by accident.

When to use it

Use it when reverse-ETL syncs into HubSpot occasionally lose rows to property validation, list-membership limits, or association failures, and you want failed rows automatically captured for the next run rather than lost. The Axiom metric makes a creeping drop rate visible before it becomes a data-trust problem.

How it works

  1. 1A schedule fires on the cadence of your HubSpot sync.
  2. 2Read the batch's source rows from BigQuery with their external IDs.
  3. 3Query HubSpot for the contacts and companies that should now exist.
  4. 4Compute which source IDs have no HubSpot match.
  5. 5Insert the missing rows into a Postgres retry table, deduplicating against any already queued.
  6. 6Send a drop-count metric, tagged by object type, to Axiom for trend dashboards.

Set it up

What you configure once, before turning it on.

  1. 1
    Connect BigQueryDatasets, queries, schemas.
  2. 2
    Connect HubSpotCRM, deals, marketing, support.
  3. 3
    Connect PostgresAny Postgres URL — query, write, migrate.
  4. 4
    Connect AxiomLog streams, queries, dashboards.
  5. 5
    Set each agent's modelWe leave models unset so you pick the tier — fast + cheap, or top-quality.
  6. 6
    Tune it to your dataEdit the prompts, filters, and field mappings so it matches how your team works.
  7. 7
    Test, then turn it onRun once against a sample, confirm the output, then enable the trigger.

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