Surely that can't be literally true. How do you buy consumables? Surely you don't tender for contracts to provide a fixed amount of coffee or paperclips per year, choose one provider, then the amount provided just has to suffice no matter if it's too big or small?
Presuming you don't, perhaps you could find a way to get your superiors to think of things like map requests as akin to coffee or paperclips rather than a service or a piece of boxed software.
Presuming you don't, perhaps you could find a way to get your superiors to think of things like map requests as akin to coffee or paperclips rather than a service or a piece of boxed software.