Author: Oscar Cronquist Article last updated on May 04, 2022

The ISNA function returns TRUE if the returned value is a #N/A error.

1. ISNA Function Syntax

ISNA(value)

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2. ISNA Function Arguments

value Required. The value you want to check for #N/A error.

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3. ISNA Function Example

Formula in cell C3:

=ISNA(B3)

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