My colleagues Amy Walsh and Sandra Dodge have coverage of a payroll bug. If you cut two paychecks in one day and use the Reprint (duplicate) Pay Stub the totals aren’t correct.
Dynamics GP – Payroll If you cut two paychecks in one day and use the Reprint (duplicate) Pay Stub | DynamicsCare
Archived post from 2011. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.