Power Automate ToLower Function Explained

Power Automate ToLower Function

The Power Automate ToLower function lets you convert all characters of a given string to lowercase.

Its counterpart is the toUpper function, that lets you convert all characters of a given string to uppercase.

In this article, I’ll introduce you to the toLower function and will provide a step-by-step guide on how to use the function in a Microsoft flow.

Power Automate ToLower Function

power automate tolower
Power Automate toLower expression

Convert the input string to all lowercase letters and keep any characters that don’t have a lowercase version in their original form in the returned string.



Input parameters

  • text (mandatory): The string in lowercase format to be returned.

Return value

  • Returns a string in lowercase based on the given text.

Power Automate ToLower Expression Example

=> abcdef123

How To Use The Power Automate ToLower Function

Follow the steps to understand how to use the toLower function in a Microsoft flow.

  1. Create a new flow with trigger ‘Manually trigger a flow’

    power automate tolower new flow

    New flow

  2. Add a new step by clicking on ‘+ New step’

    power automate tolower new step

    Add a new step

  3. Search for ‘initialize’ and click on the ‘Initialize variable’ action

    power automate tolower add init variable

    Add Initialize variable action

  4. Setup Initialize variable action: 1) Provide a name, 2) Select type ‘String’, 3) Set value to ‘POWER AutoMaTe TOlowER #!?’

    power automate tolower setup init variable

    Configure Initialize variable action

  5. Add a compose step by searching for ‘compose’ and clicking on ‘Compose’

    power automate tolower add compose action

    Add Compose action step

  6. Setup Compose step: 1) Click into Inputs text field (popup appears), 2) click on ‘Expression’, 3) Set expression to ‘tolower(variables(‘myText’))’, 4) click ‘OK’

    power automate tolower setup compose action

    Configure Power Automate ToLower Expression

  7. Save and do a test run

    power automate tolower test run

    Result Test run – toLower function in Power Automate

Leave a Comment

Your email address will not be published. Required fields are marked *