Thanks for the reply. I have a few questions:

1.) I'm unable to find a single article/video demonstrating someone using the QB Card Rear the way I intend to. The only things I can find are people creating small, one-product invoices on the GoPayments app and accepting payment-in-full for it (i.e. produce, handbags, etc.).

NOTE: I am creating detailed, intricate, parts-and-labor invoices and customers are rarely paying-in-full.

Will I need to create an invoice on the mobile app every time I need to accept a payment? I currently create invoices on QBO via a desktop computer. I do have the QBO mobile app, so can I open the app, select an invoice that is already created, and accept a payment towards it that way?

2.) Can I replace my Magtek Dynamag with something like the Magtek tDynamo? It plugs into the computer the same way as my current Dynamag, but accepts EMV, NFC, etc.