Special Characters stopping flow

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Posted on by MM-05082039-0

Hi Everyone,

I have a flow that recieves a text field from Power Apps. Users often use special characters ~`!@#$%^&*()+|{}[]<>/\?;:., in the text field.

These special characters wont pass through the "compose" function in power automate.

I have read a lot of commentary online about how to remove the special characters.

Is there any way to keep the special characters and still get the flow to work?

Thanks

Mike

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JK-01120840-0 2 on at

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I had a similar problem, try wrapping your text field in to encodeUriComponent() on the formula bar. You can also decodeUriComponent to get it back to normal. In my case dataverse decodes the value automatically after I add a new row.

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David_MA 14,614 Super User 2026 Season 1 on at

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I don't use Power Apps, but I think this is possible. Use a regular expression to restrict the characters that can be entered in the field. This expression will only let people enter letters and numbers: IsMatch(TextInput1.Text, "^[A-Za-z0-9]+$")

We use Nintex forms, which allows for RegEx validation of fields, and I use this expression for instances such as this. With Nintex forms, I can set an error message when the RegEx validation of the field fails.

Although, you mentioned you are having the issue with this in a compose action. Can you share how you have the compose action configured and the error message you get. A Compose action should be able to return any text at all.

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