I thought the issue witht he question / id above ID27735560 was resolved. I updated the column width of combo boxes in layout view and when toggling to form view filter by form did work when the descriptive /non-bound field was displayed. The filer is also being displayed in a text box and it did show that the filter was on the id field. However, after saving and closing the database the same issue occurs. If the non-bound field is displayed in the combo box filter by form returns type mismatch. How can just the descriptive field be displayed and the filter be applied using the bound / id field or how can both fields be displayed in the combo box and the filter be applied using just the id field? I tried changing the column widths to show both but only the bound column actually shows after a list item from the combo box is selected.