https://connector.greywolf.com/sx/ws.aspx?APIKey=APIKEYHERE&result=json&v=1&api=PurchasingInvoiceInsert&cono=&pono=&whse=&costord=&groupnm=&vendno=&transcd=&apinvno=&amount=&invtype=&immedpyfl=&disputefl=&invdt=&termstype=&nopays=&freqdays=&discpct=&discamt=&refer=&groupseqno=&exchgrate=&gsttaxamt=&psttaxamt=&discdays=&discdt=&duedt=&transdt=&operinit=&notes=&nprintfl=&PurchasingInvoiceInsert=&vendprod=&shipprod=&upc=&shipamt=&costord=&PurchasingInvoiceLinesInsert=&lineno=&addonno=&ediaddonno=&addonamt=&PurchasingInvoiceAddonsInsert=