title: LinkedIn API request fails with "Unpermitted fields present in RESOURCE_KEY: Data Processing Exception while processing fields [/memberId]"
body: <p>I'm trying the following request:</p>
  
  <pre><code>GET https://api.linkedin.com/v2/people/(id:urn:li:person:&lt;person id&gt;)?oauth2_access_token=&lt;token&gt;&amp;projection=(results*(localizedFirstName,vanityName))
  </code></pre>
  
  <p>But I always get a:</p>
  
  <pre><code>{
      "serviceErrorCode": 100,
      "message": "Unpermitted fields present in RESOURCE_KEY: Data Processing Exception while processing fields [/memberId]",
      "status": 403
  }
  </code></pre>
  
  <p>If I try to do it using the alternative API:</p>
  
  <pre><code>GET https://api.linkedin.com/v2/people?ids=List((id:urn:li:person:&lt;person id&gt;))&amp;oauth2_access_token=&lt;token&gt;&amp;projection=(results*(localizedFirstName,vanityName))
  </code></pre>
  
  <p>An Internal Server Error is returned:</p>
  
  <pre><code>{
      "message": "Internal Server Error",
      "status": 500
  }
  </code></pre>
  
  <p>I'm using Google Chrome to perform those requests.</p>
  
  <p>I tried using Postman too.</p>
  
  <p>Headers:</p>
  
  <pre><code>X-Restli-Protocol-Version: 2.0.0
  Authorization: Bearer &lt;token&gt;
  </code></pre>
  
  <p>Got:</p>
  
  <pre><code>{
      "serviceErrorCode": 0,
      "message": "Syntax exception in path variables",
      "status": 400
  }
  </code></pre>
  
  <p>My app permissions are:</p>
  
  <ul>
  <li>r_emailaddress</li>
  <li>r_ads</li>
  <li>w_organization_social</li>
  <li>rw_ads</li>
  <li>r_basicprofile</li>
  <li>r_liteprofile</li>
  <li>r_ads_reporting</li>
  <li>r_organization_social</li>
  <li>rw_organization_admin</li>
  <li>w_member_social</li>
  </ul>
  
  <p>I tried other APIs (socialActivity, ugcPosts) and everything looks fine.</p>
  
  <p>I checked my API usages at <code>https://www.linkedin.com/developers/apps/&lt;id&gt;/usage</code> and <code>people</code> usage is currently 0%.</p>
  
  <p>The tested user profiles are also public.</p>