Thank you for the prompt reply.  I see now that I should have been more descriptive...

Rather than simply recording a deposit, I am actually concerned about depositing a paper check into my new QuickBooks Cash + Envelopes (QBC+) account. Most of my clients pay through QBO, which is great. A few clients, however, pay via a paper check.  I was hoping to see a place in the QBO mobile app to perform a mobile deposit (via camera), like most modern banks offer. Is there at least a physical address that I can snail-mail a check to for deposit? I'm not keen on maintaining a separate, external business checking account solely as a pass-though account for depositing checks.