Our 2007 Ford Focus door lock will not lock, how do you permanently lock it, until you can get it fixed?

You mean the electronic locks don't work or the mechanical locks have failed?

The right back door does not lock.

Ok lets try it this way... When you press the lock button the door doesn't lovk or unlock, right? Have you tried to lock the door from the inside- the door has a lock mechanism slightly above the door latch.

It does not work electronically or manually.

You would have to go inside of the door to figure out why the manual lock isn't working. Since it doesn't manually lock there's nothing you can do