https://connector.greywolf.com/sx/ws.aspx?APIKey=APIKEYHERE&result=json&v=1&api=SalesRebateList&cono=&whse=&custno=&custrebty=&startdt=&enddt=&vendno=&prod=&prodcate=&contractno=&dropshipty=&rebatecd=&transdt=&refer=&operinit=&levelcd=