How to skip automatically popup "A script is attempting to access SAP GUI" and "A script is opening a connection to system: *******"

I am trying to optimize my Excel VBA to SAP connection and don't want to click "OK" on two message boxes that appear when starting the following code:

Sub SAP_1()

Dim obj_Shell As Object
Dim obj_SAPGUI As Object
Dim obj_Application As Object
Dim obj_Connection As Object
Dim obj_session As Object

Application.DisplayAlerts = False
    Shell "C:\Program Files (x86)\SAP\FrontEnd\SAPgui\saplogon.exe", 4
    Set obj_Shell = CreateObject("WScript.Shell")
    Do Until obj_Shell.AppActivate("SAP Logon")
        application.Wait Now + TimeValue("0:00:01")                 
    Loop
    Set obj_Shell = Nothing
    Set obj_SAPGUI = GetObject("SAPGUI")
    Set obj_Application = obj_SAPGUI.GetScriptingEngine
    Set obj_Connection = obj_Application.OpenConnection(str_ConName, True)
    Set obj_session = obj_Connection.Children(0)
' rest of the code
Application.DisplayAlerts = True
End Sub

How can I avoid the following SAP message boxes or click them via VBA:

At line Set obj_Application = obj_SAPGUI.GetScriptingEngine:

"A script is attempting to access SAP GUI"

At line Set obj_Connection = obj_Application.OpenConnection(str_ConName, True):

"A script is opening a connection to system: *******"

What's the difference to the code below? Why is the SAP GUI Scripting asking not to define them as Objects? Is there a better alternative?

 If Not IsObject(obj_SAPGUI) Then
    Set obj_SAPGUI = GetObject("SAPGUI")
    Set obj_Application = obj_SAPGUI.GetScriptingEngine
 End If
 If Not IsObject(obj_Connection) Then
    Set obj_Connection = obj_Application.Children(0)
 End If
 If Not IsObject(obj_session) Then
    Set obj_session = obj_Connection.Children(0)
 End If
 If IsObject(obj_WScript) Then
    obj_WScript.ConnectObject obj_session, "on"
    obj_WScript.ConnectObject obj_Application, "on"
 End If

Are there other things in the code that can be optimized?

Thank you for your help.

In order to avoid the messages that a script tires to access resp. connect to the SAPGUI you have to change settings either in the registry or via SAPGUI.

In the SAPGUI press Alt-F12 and then select Options, goto Scripting, and uncheck all check boxes below Enable scripting.

These settings are stored in the registy and one could also use VBA code to set them. The key is HKEY_CURRENT_USER\Software\SAP\SAPGUI Front\SAP Frontend Server\Security\