As you might know Due dates on Accounting documents are deterimine through out the Baseline Date and the payment Term.
To calculate Due date SAP uses function Determine_Due_Date to display this info ( for example on FBL5N).
The problem is that Due Date is note considering if it is a working or non working day. Is there any way to set up SAP in a way to consider Factory Calendar so to determine Due Date?.
My initial thought is why would you not want to include non working days when determining the due date?
If this is a requirement, I would suggest that you will need to customize the function module (FM) so that it takes account of non working days within the factory calendar. you will need help from an ABAP'er to do this & my feeling is it will be a bit tricky.
Sorry I can't give you the exact details but it is something that you will need to work out programmatically with your ABAP - going through de-bug, finding where in the FM the due date is calculated & seeing whether you can make it lookup the factory calender & then take account of the non working days in its calculation.