Hi @cmellizo ,
Could you please share a bit more about your issue?
Do you use the Replace function within PowerApps to replace your characters, or use the replace function of WDL expression in Microsoft Flow to replace your characters?
If you use the replace function of WDL expression in Microsoft Flow to replace your characters, I have made a test on my side, and don't have the issue that you mentioned. Please check the following workaround:
Set the Inputs field of the "Compose" action to following:
áé+ñ
Set the Inputs field of the "Compose 2" action to following (replace 'á' with 'K'):
replace(outputs('Compose'),'á','K')
The flow works successfully as below:
More details about using expression in flow actions, please check the following blog:
https://flow.microsoft.com/en-us/blog/use-expressions-in-actions/
If you use the Replace function within PowerApps to replace your characters, I have also made a test on my side, and don't have the issue that you mentioned. Please check the following workaround:
Set the Text property of the Label control to following:
Replace(TextInput1.Text, 1, 1, "K")
The standard Replace formula format as below:
Replace( String, StartingPosition, NumberOfCharacters, NewString )
More details about Replace function, please check the following article:
Replace function
In addition, you could also consider take a try to use Substitute() function to achieve your needs. Please set the Text property of the Label control to following:
Substitute(TextInput1.Text, "á","K")
The standard formula format as below:
Substitute( String, OldString, NewString [, InstanceNumber ] )
Best regards,