发票取消报错，提示APP-SQLAP-97150

APP-SQLAP-97150: You cannot cancel this invoice because the cancellation would reduce the quantity or amount billed on one or more purchase orders to be less than zero

 解决：检查当前发票关联的PO是否有借项通知单/贷项通知单。需要先处理借项通知单/贷项通知单才能取消当前发票。