Checks whether a value is the error `#N/A`. Learn more
In Google Sheets, the ISNA function is used to check if a value is #N/A (not available) and returns a TRUE or FALSE value. The syntax for ISNA is:
ISNA(value)
where "value" is the cell or range of cells to check for #N/A.
If the value is #N/A, the function will return TRUE. If the value is not #N/A, the function will return FALSE.
This function is often used in combination with other functions, such as VLOOKUP, to handle errors or missing data in a worksheet.