Validate completeness
Confirm that expected records moved from source to target, including key master data, transactions, balances, documents, and reference data.
Reconcile critical fields
Compare source and target totals, counts, statuses, dates, balances, and other critical fields. Exceptions should be documented and resolved or accepted formally.
Plan post-go-live checks
After cutover, teams should confirm system usability, reporting accuracy, business process continuity, and any open migration issues.