When I open a previously submitted record I want the dropdown to be defaulted with what the user submitted. In the textboxes it has the submitted words written but the dropdown never has the saved value. I tried to put this on defaultselecteditems but it did not work. LookUp('Data', ID=recID && Application=ThisItem.Application), I need the application they chose to be defaulted when they click back in the form.
Your question have quite a lot of variables. It looks like you are using combo box not dropdown - very similar controls. DefaultSelectedItems is correct property which for most Combo box's required Object so using Lookup in some sense is logic. But to help you could you please let me know what is the data source which you are using? Where the Combo box is set? In the screen as stand alone control? Or as Data Card as part of Form control? What is the source of the Combo box Items? Where you are stroing result of the Combo box - you meantioned something that this value is not recorded.