title: Resolve error on deep insert of navigation property Dynamics WebAPI
body: <p>I am using the <a href="https://msdn.microsoft.com/en-us/library/mt607689.aspx" rel="nofollow noreferrer">Microsoft Dynamics Web API</a> to write data to an entity in Microsoft Dynamics 365. When I try to do a <a href="https://msdn.microsoft.com/en-us/library/gg328090.aspx#Create%20related%20entities%20in%20one%20operation" rel="nofollow noreferrer">deep insert</a> I am receiving the error</p>
  
  <blockquote>
    <p>An undeclared property 'ccseq_employeeid' which only has property annotations in the payload but no property value was found in the payload. In OData, only declared navigation properties and declared named streams can be represented as properties without values.</p>
  </blockquote>
  
  <p>Why am I receiving this error and how can I resolve the error?</p>
  
  <h2>JSON</h2>
  
  <pre><code>{
      "ccseq_importdate" : "2017-05-28T04:00:00Z", 
      "ccseq_month" : "1", 
      "ccseq_year" : "2017", 
      "ccseq_name" : "Test", 
      "ccseq_status" : "100000000", "ccseq_ccseq_expensetransactionset_ccseq_expensetransaction_ExpenseTransactionSetID" : 
      [ 
          { 
            "ccseq_employeeid@odata.bind": "/systemusers(6d2fd71b-32d1-dd11-a4f5-001a6449bbe7)", 
            "ccseq_clientid@odata.bind": "/ccseq_clients(663ebd00-73b9-4faf-90ed-f56bb9c2dc9b)", 
            "ccseq_navemployeeid" : "11111", 
            "ccseq_employeefirstname" : "John"
          }
      ]
  }
  </code></pre>
  
  <p><code>ExpenseTransactionSet</code> is the parent of <code>ExpenseTransaction</code> meaning that <code>ExpenseTransaction</code> has a lookup to <code>ExpenseTransactionSet</code>.  <code>ccseq_ccseq_expensetransactionset_ccseq_expensetransaction_ExpenseTransactionSetID</code> is one to many relationship. <code>systemuser</code> and <code>ccseq_clients</code> are separate entities that are lookups in <code>ExpenseTransaction</code>.</p>
  
  <p>I've also tried the below variations on the <code>"ccseq_employeeid@odata.bind"</code></p>
  
  <ul>
  <li><code>objectid_systemuser@odata.bind</code></li>
  <li><code>objectid_ccseq_employeeid@odata.bind</code></li>
  <li><code>ccseq_employeeid@data.bind</code></li>
  <li><code>ccseq_employeeid@odata.bind : systemusers()</code></li>
  <li><code>ccseq_employeeid_systemusers@odata.bind</code></li>
  <li><code>systemuserid_systemusers@odata.bind</code></li>
  </ul>
  
  <p>I have seen <a href="https://stackoverflow.com/questions/32761311/create-annotation-to-a-contact-entity-in-microsoft-dynamics-crm-by-api">this</a> question and <a href="https://stackoverflow.com/questions/42631164/microsoft-dynamics-web-api">this</a> question and tried the suggested resolutions without success.</p>