I am getting an error message "Order is incomplete" on a sales order, preventing creation of delivery document for that sales order. I have checked incompletion log in sales order, it leads to schedule line item > shipping. But all dates are maintained accordingly. Sales order is created on 28.09.2016 and the schedule line data; the delivery date, goods issue date, loading date, material avail.date, and transportation plan. date are set accordingly (28.09.2016). Please help, did I missed any checking?