I have not worked with SAP applications, so will not be able to tell you how QTP behaves 
I would advise you that it will be better to install SAP Add-in then start working on it.
That way QTP will be able to identify the objects, this is why the add-ins are there.
I dont think Low level recording will solve your issue

I would advise you that it will be better to install SAP Add-in then start working on it.
That way QTP will be able to identify the objects, this is why the add-ins are there.
I dont think Low level recording will solve your issue

