In Classic, if a request was more than what was budgeted, we could use the balance and pull funds from another budget. Now, you have to go out of the request, go to Financial, click Budget, do the transfer, go back into the request (but you have find it again, it won't save the open request so you can click on it) then you can pay from that budget. AND, if you're not an admin, you have to notify the admin to make the adjustment for you, wait, and then go back in when the admin moves the funds.