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Expression to remove special characters: EUR and USD symbols does not work

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Posted on by CU22080723-2

Hi Everyone,

i have built a power automate flow to extract infomration from receipts (date and amount) and add them into xlsx, however, sometimes it fails to add values properly.

Let me give you examples:

Here's what the expression suppose to do. I want to cover all the cases that can cause incorrect data entry:

Removes 'EUR' and 'eur' strings: Eliminates both uppercase and lowercase "EUR" from the text.
Removes non-numeric characters: Uses a pattern ('[^\d.,]') to remove everything except digits, commas, and periods.
Replaces commas with periods: Converts commas to periods. For me =sum works with periods, not commas
Removes spaces: Eliminates all spaces from the text.
Trims whitespace: Removes any leading and trailing spaces from the result.

trim(replace(replace(replace(replace(replace(outputs('Extract_information_from_receipts_2')?['body/responsev2/predictionOutput/result/fields/total/value'], 'EUR', ''), 'eur', ''), '[^\d.,]', ''), ',', '.'), ' ', ''))

Any ideas hwo to fix this isse. Maybe I have the wrong order in my expression or any other mistake? Could someone help me here. I need the correct expression.
To keep it simple, i need an expression that removes everything except numbers and replaces commas with dots if any.

I will then adjust the expression for the Amount column in my flow

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CU22080723-2 58 on at

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I have adjusted the expression.

this one removes eur symbol:

replace(replace(replace(replace(outputs('Extract_information_from_receipts_2')?['body/responsev2/predictionOutput/result/fields/total/value'], '€', ''), ',', '.'), '[^\d.]', ''), ' ', '')

am I missing something or maybe you have ideas how this expression can be further improved?

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codeninja.sj 115 on at

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Could you explain which model was used to retrieve the amount value? Also, have you used the number field to extract the amount value?

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Chriddle 8,672 Super User 2026 Season 1 on at

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Unfortunately Regex is not available in a PA replace() function ;(

Use toLower() to avoid case sensitivity issues

Here are 3 different ways to approach this problem:

Left one: Simple replacements.

(Replace item() with your value)

trim( replace( replace( replace( replace( replace( replace( toLower(item()), ',', '.' ), 'euro', '' ), 'eur', '' ), '€', '' ), 'usd', '' ), '$', '' ) )

Middle: Here you don't need to know what to replace. This filters for numbers and dots. but it's not a simple expression anymore, you need a Select (or a Filter).

Select_2 From

chunk(replace(outputs('Compose'), ',', '.'), 1)

Select_Map

if( contains( '.0123456789', item() ), item(), '' )

Compose_2

join(body('Select_2'), '')

Right: This removes all characters in "€$ abcdefghijklmnopqrstuvwxyz". Add more characters if needed.

xpath( xml('<doesnotmatter/>'), concat( 'translate("',toLower(replace(outputs('Compose_3'), ',', '.')), '", "€$ abcdefghijklmnopqrstuvwxyz", "")' ) )

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