Hi abmen,
It's good to see in the Community! Let me address your concern about assigning a project to a transfer.
A transfer transaction in QuickBooks Online refers to the movement of funds between two different accounts, such as from a checking account to a savings account or between two bank accounts. This type of transaction does not involve a sale or purchase of goods or services, but rather represents the internal movement of money within the company's accounts. That being said, we're unable to associate a project to a transfer.
If you have other concerns about transfers, please don't hesitate to go back to this thread. I'll be happy to help again.