title: Azure Mapping Data Flow : Not able to use blob storage dataset as a source
body: <p>I added a Azure Blob <code>dataset</code> as a source to a Azure mapping data flow, but am not able to view the preview as it is showing the below error :</p>
  <blockquote>
  <p>Dataset is using 'AzureStorage' linked service type, which is not supported in data flow.</p>
  </blockquote>
  <p>Given below is the dataset JSON :</p>
  <pre><code>{
  &quot;name&quot;: &quot;PIT_Input&quot;,
  &quot;properties&quot;: {
      &quot;linkedServiceName&quot;: {
          &quot;referenceName&quot;: &quot;data_staging&quot;,
          &quot;type&quot;: &quot;LinkedServiceReference&quot;
      },
      &quot;annotations&quot;: [],
      &quot;type&quot;: &quot;DelimitedText&quot;,
      &quot;typeProperties&quot;: {
          &quot;location&quot;: {
              &quot;type&quot;: &quot;AzureBlobStorageLocation&quot;,
              &quot;container&quot;: &quot;dataflowpoc&quot;
          },
          &quot;columnDelimiter&quot;: &quot;,&quot;,
          &quot;escapeChar&quot;: &quot;\\&quot;,
          &quot;firstRowAsHeader&quot;: true,
          &quot;quoteChar&quot;: &quot;\&quot;&quot;
      },
      &quot;schema&quot;: []
    }
  }
  </code></pre>
  <p><strong>data_staging</strong> is a linked service of type <strong>Azure Storage</strong>.</p>
  <p>The documentation states that Azure Blob datasets can used as a source.
  Please tell me what I'm doing wrong here.</p>