title: Check Access Form Field for Null, if Not Null then Call the Add Feature
body: <p>I have this simple Access Form that when you fill out the form and forget to fill out the Business Unit field, a msgBox will pop up telling you so and setFocus to that very Combo box. If it is Not null, I want to call the next feature.  The first part of this code works, but the when it is notNull it wil not carry on.</p>
  
  <pre><code> Private Sub Image_AddNon_RPS_Button_Click()
  
   If IsNull(Me.BU_Selected_Add) Then
      MsgBox "Please Select a Business Unit!", vbOKOnly
              Exit Sub
           End If
      Me.Combo_BU_Selector.SetFocus
      Exit Sub
  If Not IsNull(Me.BU_Selected_Add) Then
      Call Add_RPS_LINE
          End If
  End Sub
  </code></pre>
  
  <p>Does anybody see where I am totally out in left field?</p>