Error while passing Application Parameter in Transaction iView editor

Dear all

I am trying to pass some application parameters to one of the transaction iViews. Without passing any parameter in 'Application Parameters' field of the iView editor the iView can be previewed/displayed fine. But when I am trying to pass the parameters as follows <Screen_Parameter1>=<ABC>&<...>=<...> the preview is coming up with a Portal runtime error saying that the <Screen_Parameter1> is an invalid terminal property of the root context_

Can anybody help me out with this?

MAQ