Could someone clarify the clarification? The link only describes how to create a delayed charge, not its purpose. When would one desire "to keep track of items to be invoiced to clients in the future"? 

Can someone post examples of when this would be useful? I am guessing it allows you to generate a bill, but not actually invoice it until a later date, which sounds like it doesn't post to A/R until the delayed charge is later invoiced. Does this sound right?

Can such a delayed charge be sent to a customer to request a deposit on a future job? Or, does anyone have any real-world examples of its use?