MsgBox "Attention dossier n° " & _
IIf(Cells(ActiveCell.Row, ColDossier).Value = "", _
Cells(ActiveCell.Row, ColDossier).End(xlUp).Value, _
Cells(ActiveCell.Row, ColDossier).Value) & _
" ; échéance dépassée !" & Chr(10) & "Sinistre : " & _
IIf(Cells(ActiveCell.Row, ColSinistre).Value = "", _
Cells(ActiveCell.Row, ColSinistre).End(xlUp).Value, _
Cells(ActiveCell.Row, ColSinistre).Value) 'affiche le message, _
& Chr(10) & "Sujet : " & _
Cells(ActiveCell.Row, ColEvenement).Value 'affiche le message