Here is an old post of mine that lays it out:
If you are asking how you would do it in code.
Right click on the sheet tab for that sheet. Select view code. In the left
dropdown, select worksheet, in the right, Change.
This sub will appear:
Private Sub Worksheet_Change(ByVal Target As Excel.Range)
End Sub
You can put in code like this
Assume you will enter the name in Cell B5 and you want the date put in cell
C5
Private Sub Worksheet_Change(ByVal Target As Excel.Range)
If Target.Address = "$C$3" Then
If Len(Trim(Target.Value)) > 0 Then
Target.Offset(0, 1).NumberFormat = "mm/dd/yyyy"
Target.Offset(0, 1).Value = Date
Target.Offset(0, 1).EntireColumn.AutoFit
End If
End If
End Sub
If you want this to happen if anything is entered in column C
Private Sub Worksheet_Change(ByVal Target As Excel.Range)
if target.column = 3 then
If Len(Trim(Target.Value)) > 0 Then
Target.Offset(0, 1).NumberFormat = "mm/dd/yyyy"
Target.Offset(0, 1).Value = Date
Target.Offset(0, 1).EntireColumn.AutoFit
End If
End if
End Sub
Regards,
Tom Ogilvy