The column in the query is as follows:
SaleDate: IIf([salesdate1] Between [Forms]![frmFlash]![StartDate] And [Forms]![frmFlash]![EndDate],[salesdate1],IIf([salesdate2] Between [Forms]![frmFlash]![StartDate] And [Forms]![frmFlash]![EndDate],[salesdate2],IIf([salesdate3] Between...