Renaming multiple outlook attachments based on their names

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Posted on by adaghma

Hello everyone!

I am trying to do the following:

1- Pull multiple outlook attachments with the following name format: MGI - Daily Progress Report 29-03-2023

2- Rename the downloaded attachments to: DPS - 29-March-2023

I have created the following flow:

The flow always fails in rename action whether I add it to the loop or without a loop.

This is the first flow I created and I really need your help!

Thank you

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Power Automate Desktop

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Nived_Nambiar 18,138 Super User 2026 Season 1 on at

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Hi @adaghma

May i know what is the error message you are getting at rename action ?
adaghma 12 on at

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Hi @Nived_Nambiar This is the error message:
Spoiler (Highlight to read)
Microsoft.Flow.RPA.Desktop.Modules.SDK.ActionException: Can't rename file ---> System.ArgumentException: Illegal characters in path.
at System.IO.Path.CheckInvalidPathChars(String path, Boolean checkAdditional)
at System.IO.Path.Combine(String path1, String path2)
at Microsoft.Flow.RPA.Desktop.Modules.File.Actions.RenameFilesAction.Execute(ActionContext context)
--- End of inner exception stack trace ---
at Microsoft.Flow.RPA.Desktop.Modules.File.Actions.RenameFilesAction.Execute(ActionContext context)
at Microsoft.Flow.RPA.Desktop.Robin.Engine.Execution.ActionRunner.Run(IActionStatement statement, Dictionary`2 inputArguments, Dictionary`2 outputArguments)
Microsoft.Flow.RPA.Desktop.Modules.SDK.ActionException: Can't rename file ---> System.ArgumentException: Illegal characters in path.at System.IO.Path.CheckInvalidPathChars(String path, Boolean checkAdditional)at System.IO.Path.Combine(String path1, String path2)at Microsoft.Flow.RPA.Desktop.Modules.File.Actions.RenameFilesAction.Execute(ActionContext context)--- End of inner exception stack trace ---at Microsoft.Flow.RPA.Desktop.Modules.File.Actions.RenameFilesAction.Execute(ActionContext context)at Microsoft.Flow.RPA.Desktop.Robin.Engine.Execution.ActionRunner.Run(IActionStatement statement, Dictionary`2 inputArguments, Dictionary`2 outputArguments)
and this is how I made the loop for rename, I don't know if its correct or not?:
Thank you!
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Nived_Nambiar 18,138 Super User 2026 Season 1 on at

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Hi @adaghma

Try this way

It is because replace with expects text not list 🙂
Hope it helps
adaghma 12 on at

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@Nived_Nambiar It worked perfectly Nived!
I never saw any tutorial that did it the way you did
Thank you again Nived, i would be very grateful if you explained how you solved it
Nived_Nambiar 18,138 Super User 2026 Season 1 on at

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Hi @adaghma

Did you meant how actually i approached the problem /question?
adaghma 12 on at

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Yes @Nived_Nambiar
Nived_Nambiar 18,138 Super User 2026 Season 1 on at

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Hi @adaghma

I did experiments to get the correct answers That's my way of solving question 😅😅😅

Actually for rename, i usually use one file for renaming but here you have used multiple files at once, i did not did this earlier, just got some idea from Microsoft documentation and gave a try , that's all

And thank you for making me learning something new !

Hope you have a nice day !