ISERR function

This function allows you to test an expression and returns TRUE if your given expression results in any error apart from #N/A. For this function the #DIV/0, #NAME, #NULL!, #NUM!, #REF!, or #VALUE! errors all result in TRUE and the #N/A error or any other value results in FALSE.



  • Value (required) – This is the value that is checked for an error.


In this example we test a few values some of which are errors. Notice the #N/A error results in FALSE while the other errors result in TRUE.



About the Author

John MacDougall

John MacDougall

John is a Microsoft MVP and qualified actuary with over 15 years of experience. He has worked in a variety of industries, including insurance, ad tech, and most recently Power Platform consulting. He is a keen problem solver and has a passion for using technology to make businesses more efficient.


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