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Need to Capitalize First Letter of Each Word in power automate--NEED HELP

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Posted on by Ashwiniy

i want 1st letter in Capital from each word . example i have names like ASHWINI LATA , so i want result like Ashwini Lata. how to do in power automate flow

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NathanAlvares24 1,714 Moderator on at

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Hi @Ashwiniy !

You can use this flow for reference.

Flow:

Flow details:

In here, I have kept the name in a variable or it could be coming from Compose action in your case and then I split it by using space so you can get an array. Like this:

[ "NATHAN", "ALVARES" ]

Expression used:

split(variables('inputString'), ' ')

Next...

I initialized an array to then store each word. In the apply to each, I used an expression to only take the first letter of each word, capitalize it while making the other letters in lower case and append to that array.

Expression used:

concat(toUpper(substring(items('Apply_to_each'), 0, 1)), toLower(substring(items('Apply_to_each'), 1, sub(length(items('Apply_to_each')), 1))))

Lastly...

I used a "Compose" action to finally join the array by using space as its delimiter.

Expression used:

join(variables('wordsArray'),' ')

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Chriddle 8,686 Super User 2026 Season 1 on at

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If your input value is always just the name in uppercase:

Select

From

split(outputs('Compose'), ' ')

Map

concat( slice(item(), 0, 1), toLower(substring(item(), 1)) )

Compose 2

join(body('Select'), ' ')

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Chriddle 8,686 Super User 2026 Season 1 on at

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If you want to do this with just one expression, the name must not exceed the number of words that this expression can handle (here up to 4 words, but this pattern is easily extendable):

concat( toUpper( substring( outputs('Compose'), 0, 1) ), substring( if( less( nthIndexOf(outputs('Compose'), ' ', 1), 0 ), toLower(outputs('Compose')), if( less( nthIndexOf(outputs('Compose'), ' ', 2), 0 ), replace( toLower(outputs('Compose')), substring( toLower(outputs('Compose')), nthIndexOf(toLower(outputs('Compose')), ' ', 1), 2 ), toUpper( substring( toLower(outputs('Compose')), nthIndexOf(toLower(outputs('Compose')), ' ', 1), 2 ) ) ), if( less( nthIndexOf(outputs('Compose'), ' ', 3), 0 ), replace( replace( toLower(outputs('Compose')), substring( toLower(outputs('Compose')), nthIndexOf(toLower(outputs('Compose')), ' ', 1), 2 ), toUpper( substring( toLower(outputs('Compose')), nthIndexOf(toLower(outputs('Compose')), ' ', 1), 2 ) ) ), substring( toLower(outputs('Compose')), nthIndexOf(toLower(outputs('Compose')), ' ', 2), 2 ), toUpper( substring( toLower(outputs('Compose')), nthIndexOf(toLower(outputs('Compose')), ' ', 2), 2 ) ) ), replace( replace( replace( toLower(outputs('Compose')), substring( toLower(outputs('Compose')), nthIndexOf(toLower(outputs('Compose')), ' ', 1), 2 ), toUpper( substring( toLower(outputs('Compose')), nthIndexOf(toLower(outputs('Compose')), ' ', 1), 2 ) ) ), substring( toLower(outputs('Compose')), nthIndexOf(toLower(outputs('Compose')), ' ', 2), 2 ), toUpper( substring( toLower(outputs('Compose')), nthIndexOf(toLower(outputs('Compose')), ' ', 2), 2 ) ) ), substring( toLower(outputs('Compose')), nthIndexOf(toLower(outputs('Compose')), ' ', 3), 2 ), toUpper( substring( toLower(outputs('Compose')), nthIndexOf(toLower(outputs('Compose')), ' ', 3), 2 ) ) ) ) ) ), 1 ) )

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