What is the point of creating manual transactions, like expenses and sales receipts, through the create menu, if a client has a bank feed?

Hi there, 

Welcome to the Community. I'd be happy to answer any questions you've got. 

Adding transactions manually is a great way to ensure that all transactions are in your bank feed. This is done when the communication between QBO and your bank break and your transactions don't automatically sync. 

If you want to manually enter a transaction directly to the register, you can follow these steps:

1.     Click the Gear icon.
2.     Below Your Company, select Chart of Accounts.
3.     Choose an account and click View register.
4.     Click the drop-down arrow below the Date column (see screenshot below).

You can also add transactions manually by clicking the Plus icon and selecting the transaction type. I'll attach a screenshot below for reference: 

Let me know if these steps help. I'll be on standby in case you need further