Judy from Etilligent explains How to Adjust Employee Tax, CPP or EI in Dynamics GP Canadian Payroll
How to Adjust Employee Tax, CPP or EI in Dynamics GP Canadian Payroll – Etelligent Solutions
Payroll & HRTips & Hidden Features
Archived post from 2013. Dynamics GP and the links it points to have changed since; check current documentation before relying on version-specific steps.