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Redirecting the user to specific screen error?

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So I m redirecting a user to a specific screen for that I m passing the screenid in url (i.e. for eg - www.powerapps.com&ScreenID=domain1 ) and then fetching it with param() function on app onStart properties

but it is not working

Code for fetching the value and redirecting -

Switch(
Param("ScreenID"),
"domain1" , domain1Screen,
Notify("No",NotificationType.Error)
)

but it it not woring and giving a error attached in below images

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Building Power Apps

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Verified answer

WarrenBelz 153,034 Most Valuable Professional on at

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Hi @valavbs ,

You cannot put an action like Notify on the StartScreen - this will work

Switch( Param("ScreenID"), "domain1" , domain1Screen, anotherScreen )

and put the message on the other screen.

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vaubeee 533 on at

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Or
If( Param( "ScreenID" ) = "domain1", domain1Screen, ErrorScreen)
like @WarrenBelz suggested

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