In every Word document VB Project "ThisDocument" module there is an event:
Here, I have applied the tag "ManNum" to CCs requiring and numerical input and "ManText" to those requiring a text input.
Code:
Private Sub Document_ContentControlOnExit(ByVal ContentControl As ContentControl, Cancel As Boolean)
Select Case ContentControl.Tag
Case "ManText"
If ContentControl.ShowingPlaceholderText Then
MsgBox "This field requires a numeric response.", vbInformation + vbOKOnly, "INPUT REQUIRED"
Cancel = True
End If
Case "ManNum"
If Not IsNumeric(ContentControl.Range.Text) Then
MsgBox "This field requires a numeric response.", vbInformation + vbOKOnly, "INPUT REQUIRED"
Cancel = True
End If
End Select
lbl_Exit:
Exit Sub
End Sub