I'm glad you visited the Community, jrobertsconreno.
I want to make sure this is taken care of.
In creating payroll adjustments, you have to contact QuickBooks Online Customer Care (Canada). An agent will check your payroll account and will help you make some corrections. They have more tools and resources to edit or correct your employee's T4.
Don't hesitate to visit us anytime if you have other concerns. All the best!