I have a requirement wherein we need to make a "Header Text" Mandatory whenever an "Order reason" in the sales order is selected. Means whenever a Quotation/Sales order is dropped we have to select an "Order reason" why we have lost the business. Customer requires details of order loss, to be maintained in the Header Text and which should be mandatory whenever we select an "order reason" so that customer is forced to fill the remarks.
Can it be achieved through Incompletion procedure. If yes what steps need to be followed or please suggest any alternative.