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Power Platform Community / Forums / Power Automate / Quickly Combining Mult...
Power Automate
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Quickly Combining Multiple Arrays

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Posted on by BB-18031745-0 125
Hello!

I need to combine multiple arrays into one.
I have guaranteed that they are all unique values so we can use union().
The order of items needs to be kept intact.
The number of arrays we are combining is dynamic.

For now, I am using an apply to each loop which first uses union to combine one of the arrays with an array variable and then sets the same array variable to the result.

This works fine, but apply to each is pretty slow, especially while concurrency is turned off.
Is there any way to combine my arrays without using a loop?

Thank you!
Categories:
Building flows
I have the same question (0)
  • Verified answer
    Chriddle Profile Picture
    Chriddle 8,708 Super User 2026 Season 1 on at
    Since you are using an Apply to each I assume that this is about flattening an array.
  • BB-18031745-0 Profile Picture
    BB-18031745-0 125 on at
    That's exactly what I need, thank you @Chriddle!

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