The key to a successful payroll parallel run comparison is to have an accurate system to system mapping. By adopting the correct project methodology you will ensure that your mappings are well defined before you initiate the payroll testing phase. 

So whether you are replacing an old payroll with a new payroll system, migrating new employees onto an existing payroll or simply upgrading an existing payroll system, a clearly defined mapping between the old (source) and new (target) system is crucial. 

With the system mappings defined you are ready to use the Quick Pay Checker...