How does the ISERROR function (DAX) work?

ISERROR function (DAX) checks if a value is an error, and returns either TRUE or FALSE.

ISERROR Formula Syntax

ISERROR (<value>)

How do you use the ISERROR function?

Checks whether a value is an error, and returns TRUE or FALSE.

Considerations when using the ISERROR function

The ISERROR function is used to check for errors, such as division by zero. If there is an error a blank is returned, otherwise the ratio is returned.

Formula examples using the ISERROR function

= IF( ISERROR(  
       SUM('ResellerSales_USD'[SalesAmount_USD])  
       /SUM('InternetSales_USD'[SalesAmount_USD])  
             )  
    , BLANK()  
    , SUM('ResellerSales_USD'[SalesAmount_USD])  
      /SUM('InternetSales_USD'[SalesAmount_USD])  
    )