Hi @ajithd6368 ,
I am not sure which one of the four you posted you used, but you certainly need to replace the second ? with & - the first question mark is the start of the parameter set on any URL (in this case the Tenant ID) - all following need & between them. You can actually do this as you do not need the Tenant ID
https://apps.powerapps.com/play/2b42393d-99d1-4cfb-8a6f-XX?EmployeeID=123
but back to the issue - you are not getting the Switching Organization error now and as I mentioned in my testing, if you have the app on the phone and then choose open with App, the parameters worked. So the options for you are to see which URL works with (I strongly suggest) the app on the phone as I have never had much success running in a browser on a mobile device.
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