That kind of thing has already been discussed, see, for example posts #9 & #19. As per the discussions in those posts, you could, for example, use code like:
Code:
ActiveDocument.ContentControls(2).Range.Text
ActiveDocument.ContentControls(3).Range.Text
or:
Code:
With ActiveDocument.SelectContentControlsByTitle("ClientDetails")
.Item(1).Range.Text = StrDetails
.Item(2).Range.Text = StrDetails
End With