Playbook: Oracle payroll parallel run

Before cycle one:

• Agree scope, number of cycles (usually two or three) and exit criteria.
• Review LDGs, payroll definitions, elements, eligibility and balance feeds.
• Load workers and element entries; load opening balances before any Oracle payroll run.

Each cycle:

• Pick a closed legacy period and freeze the inputs; match row counts in both systems.
• Run Calculate Payroll in a named flow; clear errors from the Payroll Messages Report.
• Compare headcount, totals, elements per employee, then balances.
• Classify each difference: setup, data, legacy error, accepted rule change, rounding; assign an owner.

Sign-off:

• No unexplained net pay differences; statutory deductions reconciled; finance checks costing.
• Final cycle run by the client payroll team; record approver and accepted risks.