Auto Login SAP GUI with powershell script - powershell

Question

I'm trying to write a script that automatically logs into an SAP system via SAP GUI. I want the SAP GUI fields to be filled automatically with the script below.
Can you tell me, if I'm on the right way? How can I let it work?
#-Begin-----------------------------------------------------------------
#-Includes------------------------------------------------------------
."$PSScriptRoot\COM.ps1"
$hWSH = Create-Object "Wscript.Shell"
$hWSH.Popup("testmessage", 2, "goto", 1)
Free-Object $hWSH
#-Signatures----------------------------------------------------------
$Sig = #'
[DllImport("user32.dll", CharSet = CharSet.Auto)]
public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);
'#
# FindWindow function---------------------------------------------
$Win32 = Add-Type -Namespace Win32 -Name Funcs -MemberDefinition $Sig -PassThru
#-Set the path to the SAP GUI directory-------------------------------
$SAPGUIPath = "C:\Program Files (x86)\SAP\FrontEnd\SAPgui\"
# SAP system ID-----------------------------------------------
$SID = "test.lan"
#instance number of the SAP system---------------------------
$InstanceNo = "10"
#-Start SAP GUI---------------------------------------------------
$SAPGUI = $SAPGUIPath + "sapgui.exe"
& $SAPGUI $SID $InstanceNo
#-Wait until the session is available---------------------------------
While ($Win32::FindWindow("SAP_FRONTEND_SESSION", "SAP") -eq 0) {
Start-Sleep -Milliseconds 250
}
#-Logon to SAP --------------------------------------------
$user="test"
$SAPGUI.document.getElementById("Benutzer").value= "$user"
$SAPGUI.document.getElementById("loginform").submit()
```

Answer 1

You could use SAP shortcut:
cd "c:\Program Files (x86)\SAP\FrontEnd\SAPgui\"
sapshcut -guiparm="[hostname] [installation number]" -system=[system id] -client=[client] -user=[user name] -pw=[password]
Replace the parameters (square brackets) with the appropriate values. You will see a confirmation popup when you execute this command for the first time (for a specific set of parameters), but you can disable the dialog for future automatic logins.
You may omit parameter -guiparm="[hostname] [installation number]" if the system ID is created in SAPlogon.