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Power Automate - Building Flows
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Union Issue - Was working, amended now stopped working.

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Posted on by 14

Hey, so i have a flow where i have email in an excel with multiple rows which are duplicates.

 

I used select to gather the email and then apply to each to unionise the emails so they singular to progress.

 

I made a slight amend today and now it is saying union needs an array and not a string?

Absstephen_0-1711036488355.pngAbsstephen_1-1711036515763.png

 

 

  • Absstephen Profile Picture
    14 on at
    Re: Union Issue - Was working, amended now stopped working.

    For anyone who is viewing this and has the same issue.

     

    I had to rebuild the whole flow from apply to each to the end. Same union in the new apply to each but it still didn't like it. Must have gotten corrupt somehow.

  • Absstephen Profile Picture
    14 on at
    Re: Union Issue - Was working, amended now stopped working.

    Yeah, i see that actually but checked everything no spaces 😞

  • Chriddle Profile Picture
    7,892 Super User 2025 Season 1 on at
    Re: Union Issue - Was working, amended now stopped working.

    In your screenshot it looks like there is a space to the left of the expression box 😉

  • Absstephen Profile Picture
    14 on at
    Re: Union Issue - Was working, amended now stopped working.

    Hey, ive doubled checked no whitespaces, got another flow using same logic which is working copied pasted into here and only changed select number and same error occurs.

  • Chriddle Profile Picture
    7,892 Super User 2025 Season 1 on at
    Re: Union Issue - Was working, amended now stopped working.

    Check for additional whitespace in the Apply to each input field.

     

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