How to migrate CRM data without losing evidence

Freeze a mapping and reconciliation plan before moving production records. Run a representative dry migration, compare totals and relationships, and keep a tested rollback window.

Decision criteria

CriterionWhat to verifyDecision signal

Field lineageMap every source field, transformation, owner, destination, retention rule, and intentionally excluded value.Required for the shortlist

Relationship integrityVerify owners, companies, contacts, deals, activities, attachments, consent, and timestamps remain connected.Required for the shortlist

Access and auditRebuild least-privilege roles, preserve required audit evidence, and prevent broad temporary exports from becoming unmanaged copies.Verify before purchase

ReconciliationDefine record counts, sums, samples, exceptions, duplicate rules, and sign-off thresholds before cutover.Verify before purchase

Total-cost model

Extraction + cleanup + transformation + test environments + dual running + user validation + rollback and secure disposal.

Skip this if

Skip a one-step cutover when field ownership, reconciliation thresholds, backups, or rollback responsibilities are undefined.

Proof-of-fit checklist

Inventory entities and owners
Freeze the mapping
Migrate a representative sample
Reconcile counts and relationships
Test role access and rollback
Dispose of temporary exports securely

What changes the answer?

Team size, workflow volume, regulated data, integration depth, support expectations, and switching cost can change the shortlist. Re-run the decision after any of those constraints changes.

Reference standard

NIST Privacy Framework

Last methodology review: 11 August 2026. No vendor claim or affiliate offer is active on this page.