# ISOMITTED

## Content

This function is used to check whether the value in a [LAMBDA](/document-solutions/java-excel-api/docs/online/formula-reference/logical-functions/lambda) is missing and returns TRUE or FALSE.

## Syntax

`ISOMITTED(argument)`

## Arguments

[Required] The value you want to test, such as a LAMBDA parameter.

## Examples

`LAMBDA(x,y, IF(ISOMITTED(y),"Missing second argument",x+y))(1,)`