HubSpot Bulk Migration Overview Move CRM data into HubSpot from Salesforce, Pipedrive, or Copper — or extract it back out — without losing cross-system IDs, breaking associations, or flooding the portal with duplicates. This is not a data-mapping worksheet. It is the code, sequencing, and guardrails your migration runs at 2am against 150K records when the daily API quota is finite, HubSpot has no bulk-delete API, and a bad import leaves permanent junk that requires a support ticket to remove. The six production failures this skill addresses: 1. ID continuity loss — source CRM IDs are not pres…