title: Power Automate: Parse JSON Action: Schema Validation Failed
body: <p>Used the following article to check if a field changes:
  <a href="https://powerusers.microsoft.com/t5/Power-Automate-Community-Blog/Check-for-a-Change-in-a-SharePoint-List-Column-Value/ba-p/241347" rel="nofollow noreferrer">https://powerusers.microsoft.com/t5/Power-Automate-Community-Blog/Check-for-a-Change-in-a-SharePoint-List-Column-Value/ba-p/241347</a></p>
  <p>The following is the error message in general:</p>
  <blockquote>
  <p>Action 'Parse_JSON' failed</p>
  </blockquote>
  <p>The following is the internal actions error messages, more detailed.</p>
  <pre><code>[
    {
      &quot;message&quot;: &quot;Invalid type. Expected String but got Null.&quot;,
      &quot;lineNumber&quot;: 0,
      &quot;linePosition&quot;: 0,
      &quot;path&quot;: &quot;d.results[1].Title&quot;,
      &quot;schemaId&quot;: &quot;#/properties/d/properties/results/items/properties/Title&quot;,
      &quot;errorType&quot;: &quot;type&quot;,
      &quot;childErrors&quot;: []
    },
    {
      &quot;message&quot;: &quot;Invalid type. Expected String but got Null.&quot;,
      &quot;lineNumber&quot;: 0,
      &quot;linePosition&quot;: 0,
      &quot;path&quot;: &quot;d.results[1].Comments&quot;,
      &quot;schemaId&quot;: &quot;#/properties/d/properties/results/items/properties/Comments&quot;,
      &quot;errorType&quot;: &quot;type&quot;,
      &quot;childErrors&quot;: []
    },
    {
      &quot;message&quot;: &quot;Invalid type. Expected String but got Null.&quot;,
      &quot;lineNumber&quot;: 0,
      &quot;linePosition&quot;: 0,
      &quot;path&quot;: &quot;d.results[1].EstimatedCompletionDate&quot;,
      &quot;schemaId&quot;: &quot;#/properties/d/properties/results/items/properties/EstimatedCompletionDate&quot;,
      &quot;errorType&quot;: &quot;type&quot;,
      &quot;childErrors&quot;: []
    }
  ]
  </code></pre>