POS Software for Controlling Inventory and Receivables

I talk quite a bit to not only prospects but also recently sold customers new to the use of ProphetLine and often new to PC Based Point of Sale Software. These are courtesy calls to make sure things are progressing as expected after the sale. My first contact this morning expressed this sentiment. "Now that we have ProphetLine, we have learned who pays promptly and who does not.  we were surprised to find that we were wrong in what we thought". This company is operating multiple store operations; effectively three stores, two of which are mobile stores located on trucks. Additionally this account said, "For the first time, we know what we need to reorder and when we need to reorder before we run out." This is Retail Management.