A CRM migration is not just copying a contact table. You need to decide what to move, fit the data to the new system's structure, verify the result, and set the point from which the team records new information in one place only.
The safest order is straightforward: inventory, cleanup, field mapping, test import, verification, full import, and only then the team cutover. That way, an error found in a small sample does not become a mess across the entire database.
What does a CRM data migration include?
A CRM data migration is the transfer of a selected set of information from an old system to a new one while preserving its meaning and relationships.
Contacts and companies are only the beginning. The database may also contain deals, pipeline stages, notes, tasks, consent records, record owners, products, attachments, and activity history. CRMs do not all store these in the same way. Before exporting, decide not only what you will move but also where each type of information will go.
When is switching CRM worth it?
A switch makes sense when you can name a problem the current system does not solve: the team maintains a parallel spreadsheet, a necessary integration is missing, reporting requires manual assembly, or the cost no longer matches actual use.
Before buying a new tool, write down a few everyday workflows and test them with sample data. A longer feature list does not guarantee easier work. If you are still choosing a system, start with the guide to choosing a CRM for a small business.
How should you prepare data before migration?
Start with an inventory. List the data sources, record types, attachment volume, custom fields, integrations, and people responsible for each area. Then obtain the most complete export available and preserve an unchanged copy as an archive.
Clean a working copy:
- define how duplicates will be identified, for example by email address and company identifier,
- standardize date, phone number, country, and picklist formats,
- separate active records from archived ones and decide which truly need to enter the new CRM,
- assign an owner to every field whose meaning is unclear,
- verify that consent, contact basis, and access restrictions remain assigned correctly.
Do not edit the only copy of your export. Keep the source file, the cleaned file, and a record of the changes you made. If something is wrong after the import, this makes the cause easier to trace.
How do you prepare a field mapping?
A field mapping defines where every column and value from the old system will land in the new CRM. Put it in a separate table: source field, sample value, target field, transformation rule, and the decision for missing or invalid data.
Pay attention to relationships. A company may have several contacts, a contact several deals, and each deal its own tasks and notes. Importing records without linking identifiers can preserve the text while losing its context. Also check whether every required field in the new system has a source value or a defined default.
How do you run a test migration?
Choose a small but varied sample. Include a simple record, a duplicate, accented characters, empty fields, custom values, several related contacts, a closed deal, and a record with history. The aim is to cover difficult cases, not to reach an arbitrary number of rows.
After the import, compare the source with the result. Check record counts, relationships, owners, statuses, dates, notes, attachments, and permissions. Open several records manually and perform normal tasks: search, move a deal to another stage, save a note, and create a report. An “import complete” message does not prove that the data is usable.
How do you switch the business to a new CRM without chaos?
Set a cutover point: a specific date and time after which changes in the old CRM will no longer be treated as current. Immediately before the full import, take a final export or move the data created since the test. Once the result has been verified, give the team access to the new system and make the old one read-only if the vendor's terms and features allow it.
Prepare a rollback plan as well. Decide who can call for a rollback, where the last valid copy is stored, and how the team will preserve work completed after the cutover. A contingency plan does not mean the migration will fail. It means one error will not stop sales.
What usually breaks a CRM migration?
Problems usually come from decisions made before the importer runs, rather than from the importer itself:
- without an agreed scope, parts of the team expect data that nobody planned to move,
- ambiguous mapping changes statuses, owners, or date types,
- missing stable identifiers create duplicates or break relationships between records,
- editing both systems in parallel creates two versions of the same information,
- removing the old environment too early makes missing history impossible to check.
Integrations are a separate risk. A web form, inbox, or invoicing system may continue sending data to the old CRM. Every connection needs an owner, a test, and confirmation after cutover.
How long does a CRM migration take?
There is no honest estimate without knowing the scope. The timeline depends more on data quality, relationships, history, attachments, and integrations than on the contact count alone. A simple contact import is a different project from recreating years of sales history.
The plan should account separately for analysis, cleanup, configuration, testing, corrections, the full import, and post-launch verification. When a vendor gives you a date, ask which of these tasks it covers and who signs off on the result.
Frequently asked questions
Can you move CRM data yourself?
Yes, if the scope is simple, both systems provide suitable export and import options, and you can verify the test result. For relationships, history, attachments, or unusual integrations, agree on the vendor's or a specialist's support scope first.
What if the old CRM does not provide a complete export?
Check the export and API documentation, then ask the vendor which data it can provide and in what format. Do this before cancelling the service. Do not assume that the API includes every data type visible in the interface.
Do you need to migrate the entire history?
Not always. You can move active data to the new CRM and keep older records in a controlled archive, provided they remain searchable, protected, and removable under your retention rules. Make the decision separately for each data type.
When can you turn off the old CRM?
After confirming data completeness, integrations, and user access, and after the agreed verification period ends. The timing depends on the contract, the cost of keeping the system, and your data-retention obligations.
Is data migration enough to make the team use the new system?
No. You also need clear rules, short training based on real workflows, and an owner for the first round of corrections. Read more in the guide to CRM adoption by a team.