title: Why does one need to specify #N/A in the IFNA( ) function of Google Sheets?
body: <pre><code>=IFNA(#N/A, &quot;Does not exist&quot;)
  </code></pre>
  <p>I'm a bit confused about the <code>IFNA()</code> function in Google Sheets. If I have to specify <strong>#N/A</strong>, what's the difference to <code>IF()</code>?</p>