I encourage you to think of these two trainings in tandem.
The first one will tell you how to take on that first payroll project for one of your clients (no matter what software the client uses).
The second session will be a deep dive into OnPay as a Full Service Payroll Provider who can be your right hand as you serve your clients and their employees. For goodness’ sake, do not “Do Payroll” on your own. That is not how things are done anymore. You partner with a payroll provider. Plain and simple.