Combining Vendor and Employee isn't possible in QuickBooks Online (QBO) Payroll, @waltonandco1. There are processes we'll need to follow to complete the W2 details of your employees who were added as a vendor. I'll direct you to the best help for this.
I recommend routing back to QBO Payroll Contact Support. Their tools are equipped to help prepare the W2 for your employees and can provide you way on how to handle workers who were listed as vendors.
If you wish to view the overall detail of how much you paid to your employees in a specific period, you can visit this article: Run payroll reports.
Should you require further assistance with preparing your employee's W2 form? I’m always here to help. You can connect with us by leaving a comment below. Keep safe, and have a great day ahead.