I have to add the field 'Payment' from SalesTable to the form 'SubbillDeferralScheduleTable' in the sales order header. This should show the terms of payment of each salestable on that particular field,but it does not show the correct value. It only shows the value which is selected for the first sales table. I have tried selecting the EDT 'CustPayterm ID' to the field properties as well. I have tried adding the method 'Payment' from salestable but it s=does not even show in the drop down and even when I write it myself, the correct values don't show up
I hope you are trying this via Visual Studio and not UI. Visual Studio: create an extension of the form, add SalesTable to datasources with the correct relation. Add the SalesTable.Payment field in the form design and compile.