CRM

Nightly Duplicate-Contact Sweep with Survivorship Scoring

On a nightly schedule, scans the full HubSpot contact database for duplicate clusters, applies survivorship scoring to elect a master record per cluster, merges them, and stores…

CategoryCRM
Enginesim
Difficultyadvanced
Triggerschedule
Steps6
Setup~25 min

How it runs

The automated pipeline, trigger to output.

  • TriggerNightly schedule fires
  • ActionRead all HubSpot contacts into Postgres staging tablePostgreSQLPostgres
  • LogicCluster duplicates and compute survivorship scores
  • ActionMerge clusters onto elected master in HubSpotHubSpotHubSpot
  • ActionWrite per-cluster audit log to PostgresPostgreSQLPostgres
  • OutputSend merge digest to SlackSlack

What it does

This is the batch counterpart to event-driven dedupe. Every night it pulls the entire contact set, groups records into duplicate clusters by deterministic match keys, then elects one master per cluster using a survivorship score that weights source trust, field completeness, and recency. It merges each cluster and records a full audit log.

When to use it

Use it for periodic database-wide cleanup when duplicates accumulate faster than real-time merging catches them, or after a large import. It is the safety net that reconciles records the event trigger missed.

How it works

  1. 1A nightly schedule starts the sweep.
  2. 2The flow reads all contacts from HubSpot and stages them in a Postgres working table.
  3. 3A logic step clusters records by email, normalized phone, and fuzzy name, then scores each for survivorship.
  4. 4For every multi-record cluster it merges fields onto the elected master and marks the rest for archival in HubSpot.
  5. 5A per-cluster audit log (cluster id, master, merged ids, winning sources) is written to Postgres.
  6. 6A Slack digest reports clusters merged, records archived, and any low-confidence clusters held for manual review.

Set it up

What you configure once, before turning it on.

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

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