Re: If I make mobile deposits with my cell phone (one check at a time, not grouped together) should I deposit into checking account instead of using "undeposited funds"?
It all depends how your bank treats the mobile deposits. You always want to mimic in QB whatever happens in real life.
If when you make a mobile deposit, your bank treats each check as a separate deposit transaction, then I would recommend entering each deposit in QB direct into the checking account so they match when they download.
If when you make a mobile deposit, you enter multiple checks and your bank treats it as ONE deposit transaction, then enter it in QB into UNDEPOSITED FUNDS and then enter a single BANK DEPOSIT of those checks from undeposited funds into your bank account.