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Power Pages - Power Apps Portals
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Correct Flow Expression String

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Posted on by 5,043 Super User 2025 Season 1

How do I write the following expression so that it doesn't kick back an 'The expresssion is invalid' error?

 

 

Phineas_1-1642797058956.png

Phineas_0-1642796814006.png

 

  • Verified answer
    v-yujincui-msft Profile Picture
    on at
    Re: Correct Flow Expression String

    Hi @Phineas ,

     

    Do you want to set the URL as a variable?
    You could either take the URL as a parameter to Value directly in the Initialize variable Action, or you could add single quotes to the String() function.

     

    I have made a test for your reference.

    string('https://www.google.com')

    vyujincuimsft_0-1643015777000.png

    Result Screenshot:

    vyujincuimsft_1-1643015838319.png

     

     

    Best Regards,

    Charlie Choi

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