You could use code like:
Code:
Private Sub Document_ContentControlOnExit(ByVal ContentControl As ContentControl, Cancel As Boolean)
Dim i As Long, StrDetails As String
With ContentControl
If .Title = "Client" Then
If .LockContents = True Then Exit Sub
For i = 1 To .DropdownListEntries.Count
If .DropdownListEntries(i).Text = .Range.Text Then
StrDetails = Replace(.DropdownListEntries(i).Value, "|", Chr(11))
Exit For
End If
Next
With ActiveDocument.ContentControls(2)
If .LockContents = True Then Exit Sub
.Range.Text = StrDetails
.LockContents = True
End With
.LockContents = True
End If
End With
End Sub
Do note that this will prevent anyone changing their selection & output unless both content controls are unlocked.