This is really confusing and would do better with context. However, let me try to give you and example. When considering an expedition or military campaign one would use logistics to plan what was necessary. One would need food, clothing, camping equipment. All of these things are supplies. If packages of money were to be brought along to give as gifts or to use as bait or to bury for the future they would be considered supplies to be brought along. When money is used as currency to buy things it would not be considered a supply according to the cited text in your question.