Many businesses have some kind of priority system for identifying orders that need to be given special attention. I realise that having this 'turbo boost' capability for your business is a good thing to have, if it is used sparingly.
Sometimes businesses can come unstuck when they fail to agree on 'what is a priority' and fall into the trap of labelling everything as a priority. If you are in a backlog situation then everything looks like a priority, but the system then no longer serves its purpose.
If you are in a backlog situation and use a priority system but aren't getting anywhere then it might be time to rebalance your order books, provide new dates to your customers, and agree on a formal method of identifying and managing priorities within your business.
Author, Consultant and Chartered Engineer