Inventory before exporting
Identify the source systems, record types, relationships and data owners. Confirm authorized access and understand any export limitations. Keep a documented source snapshot for the migration rehearsal.
Treat mapping as a contract
For each target field, specify the source, transformation and behavior for missing values. Document how identifiers and relationships survive the move. Avoid guessing how ambiguous legacy fields should be interpreted.
Rehearse with representative records
Include ordinary records and edge cases in a trial import. Inspect invalid values, duplicate candidates and broken references. Resolve exceptions explicitly rather than silently discarding them.
Agree the sign-off
Define what will be compared: counts, key fields, relationships and selected full records. Assign verification responsibility and establish a rollback checkpoint before the source system is retired.
Make the handoff understandable.
Before choosing a tool, define what needs to happen, which record carries the context and who owns the next decision.
Explore a sample workflow