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Merge two contact records

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Merge two contact records

with HubSpot
Works with AI assistants

Use HubSpot: its Hubspot Advanced API lets you merge two contact records in a single step (POST /crm/objects/2026-03/contacts/merge). HubSpot also has an MCP server, so an AI assistant like Claude or ChatGPT can do it for you. capabilities.work can help you get signed up and connected.

  • Can I merge two duplicate contacts into one?
  • Which contact's property values win when two contacts are merged?
Say it to your AI assistant
  • Merge contact {objectIdToMerge} into contact {primaryObjectId}.
  • Deduplicate contacts by folding {objectIdToMerge} into primary contact {primaryObjectId}.
For your developer

POST /crm/objects/2026-03/contacts/merge in Hubspot Advanced API. Full spec on APIs.io.

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