CRM
Duplicate Merge with Slack Approval Gate for Low-Confidence Matches
Catches likely-duplicate HubSpot contacts, auto-merges high-confidence matches by survivorship rules.
How it runs
The automated pipeline, trigger to output.
- TriggerHubSpot contact created or updatedHubSpot
- ActionFind candidates and score match confidenceHubSpot
- LogicBranch by confidence: auto-merge vs human review
- ActionRequest approve/reject decision in SlackSlack
- ActionMerge survivor into HubSpot after decisionHubSpot
- OutputLog final decision and sources to PostgresPostgres
What it does
This workflow splits duplicate handling by confidence. High-confidence matches (exact email plus matching domain) merge automatically using source-trust survivorship. Low-confidence matches (fuzzy name, shared phone, different email) are paused and sent to Slack with the proposed survivorship outcome, where a reviewer approves or rejects before any change is committed.
When to use it
Use it when wrong merges are costly and you want automation for the obvious cases but a human in the loop for the ambiguous ones. Good for teams that tried full auto-merge and got burned by false positives.
How it works
- 1A HubSpot contact create/update event triggers the flow.
- 2The flow finds candidate duplicates and computes a match-confidence score.
- 3A logic branch routes high-confidence matches straight to survivorship merge; low-confidence matches go to the approval path.
- 4For low-confidence matches, Slack posts the proposed merge with approve/reject actions and the flow waits for the response.
- 5Approved or auto merges write the survivor back to HubSpot.
- 6Every decision (auto, approved, rejected, with reviewer and winning sources) is logged to Postgres.
Set it up
What you configure once, before turning it on.
- 1Connect HubSpotCRM, deals, marketing, support.
- 2Connect SlackChannels, DMs, threads, mentions.
- 3Connect PostgresAny Postgres URL — query, write, migrate.
- 4Set each agent's modelWe leave models unset so you pick the tier — fast + cheap, or top-quality.
- 5Tune it to your dataEdit the prompts, filters, and field mappings so it matches how your team works.
- 6Test, then turn it onRun once against a sample, confirm the output, then enable the trigger.
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Run it inside a business
This workflow drops into a full company template. Import the org, and this is one of the playbooks its agents run.

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