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
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.
Syntax
toLower('<text>')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
toLower('ABCdef123')
=> abcdef123How To Use The Power Automate ToLower Function
Follow the steps to understand how to use the toLower function in a Microsoft flow.
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Create a new flow with trigger ‘Manually trigger a flow’
New flow
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Add a new step by clicking on ‘+ New step’
Add a new step
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Search for ‘initialize’ and click on the ‘Initialize variable’ action
Add Initialize variable action
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Setup Initialize variable action: 1) Provide a name, 2) Select type ‘String’, 3) Set value to ‘POWER AutoMaTe TOlowER #!?’
Configure Initialize variable action
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Add a compose step by searching for ‘compose’ and clicking on ‘Compose’
Add Compose action step
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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’
Configure Power Automate ToLower Expression
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Save and do a test run
Result Test run – toLower function in Power Automate