CRM Data Migration Without Losing Leads: A Step-by-Step Guide

In short: A step-by-step plan to move contacts, deals and history to a new CRM safely.

Switching CRMs is a chance to clean up your data, but a rushed migration can lose leads, break automations and confuse your team. Follow these steps.

1. Audit what you have

List every data source: contacts, companies, deals, notes, tags, custom fields and files. Decide what is worth moving and what can be archived.

2. Clean the data

Remove duplicates, fix formatting, standardize phone numbers and country names, and update outdated records before import.

3. Map fields

Create a mapping sheet from old fields to new fields. Create any missing custom fields and tags in the new CRM first.

4. Test with a sample

Import a small batch, check that every field landed correctly and fix the mapping before the full import.

5. Migrate and verify

Run the full import during a quiet period, then compare record counts and spot-check important contacts and deals.

6. Rebuild automations and train the team

Recreate workflows, forms and integrations, run a short training session and keep the old system read-only for a few weeks as a backup.

Our CRM setup and management team handles migrations from spreadsheets and all major CRMs.

Frequently asked questions

Will I lose data when switching CRMs?

Not if you audit, map fields, test with a sample and verify record counts after the full import.

Can automations be migrated automatically?

Usually not. Workflows, forms and integrations normally need to be rebuilt in the new CRM.

Should I keep the old CRM after migrating?

Keep it read-only for a few weeks as a backup until you are sure everything has moved correctly.

Need a hand?

Planning a CRM migration? Contact TrickyBytes for a free audit and a fixed-scope quote.