How to Migrate Off HubSpot or Salesforce Without Losing History
The thing keeping most teams locked into a CRM they have outgrown is not the features. It is the fear of losing years of history in the move. That fear is manageable if you plan the migration instead of improvising it.
I have talked to many teams who know their CRM is wrong for them and stay anyway. The reason is almost always the same: years of contacts, deals, and notes live in there, and the prospect of moving it all without dropping something feels too risky to attempt. The switching cost is real, but it is mostly fear, and fear shrinks when you replace it with a plan.
A CRM migration is not a single scary event. It is a sequence of unglamorous, controllable steps. Do them in order, verify as you go, and the move becomes routine. Improvise it, and you get the disaster everyone is afraid of. Let me lay out the order that works.
Decide what history actually matters
The first step is not technical; it is editorial. You will be tempted to migrate everything, every contact, every dead deal, every note from a conversation in 2019. Resist it. A migration is a rare chance to leave the rot behind, and dragging years of dead records into a new system just imports the mess you wanted to escape.
Sort your history into three buckets: what you need live in the new system, what you want archived for reference but not active, and what you can simply leave behind. Active accounts, open deals, and the contacts you actually talk to belong in the first bucket. Closed-lost deals from years ago and contacts you have not touched since the last presidency belong in the third. Be ruthless; the new system will thank you.
Export everything before you touch anything
Both HubSpot and Salesforce let you export your data, and the first concrete move is to pull a complete export and keep it safe, untouched, as your insurance policy. Whatever happens in the migration, you can always go back to this. Do not skip it because the importer looks easy; the export is the safety net that lets you proceed without fear.
Export the core objects, accounts, contacts, deals, and the associated notes and activities, in a clean format. Check that the export actually contains the relationships, that each contact still points to its account and each deal to its contacts, because the links between records are the part most likely to break in a move and the part hardest to rebuild by hand.
Map the model before you import
The step people skip, and regret, is mapping. Your old CRM and your new one will not use identical field names or structures, and importing without a deliberate map produces garbage: data in the wrong fields, dropped relationships, custom fields that land nowhere. Sit down and decide, field by field, where each piece of old data goes in the new model.
- Match the core objects first: old account to new account, old contact to new contact, old deal to new deal. Get these right and the rest follows.
- Preserve the relationships explicitly. A contact must still belong to its account and a deal to its contacts after the move. Verify this on a sample before trusting the whole.
- Translate stages, since your old pipeline stages may not map one-to-one. Decide the mapping deliberately rather than letting the importer guess.
- Decide what to do with custom fields. Many are dead weight; bring across only the ones you actually use.
Migrate in a test pass first
Never do a migration once, live, and hope. Run a test pass with a representative slice of data, a few accounts with their contacts and deals, and inspect the result carefully. Did the relationships survive? Did the deal values and stages land correctly? Did the notes come across attached to the right records? The test pass surfaces the problems while they are cheap to fix.
Only after the test pass looks right do you run the full migration. Then verify again at scale: spot-check accounts across the alphabet, confirm the deal totals match your old system, and have the people who use the CRM daily look for anything missing. The goal is that on the first morning in the new system, the team finds their world intact rather than a puzzle.
Importers and a managed move
The good news is that you rarely have to do all of this by raw export and re-import. Modern CRMs offer importers built specifically for HubSpot and Salesforce that understand their data shapes and preserve the relationships for you, which removes most of the manual mapping risk. The dedicated importer is what turns a feared migration into a guided one.
Atlas includes importers for both HubSpot and Salesforce, and integrates with them too, so you can move at your own pace or run in parallel during the transition. Because accounts, contacts, and deals land on the same data model as projects and contracts, the history you bring across is not just stored, it is connected to the work that history led to. If you are weighing the move, /pricing and /all-in-one are the practical places to start, and the agency view is at /solutions/agencies.