We know unfilled/skipped questions are always black in the result excel sheet. I want all skipped and unfilled questions are auto-filled by 99. Is it possible?
You should try using the default value characteristics where you create the default you need. However you should note that relevant conditions determine whether or not the value will be saved and transmitted up to the server. If a question is not relevant, a blank value will be transmitted to the server, even if you supply a default value for that field.
In essence and to answer your question, NO IT IS NOT possible to design a survey were skip questions are auto filled by 99. You may have to do this change during data processing off the system.
Thank you @stephanealoo