title: How to POST a new entry in JSON Format at OData-Service with POSTMAN?
body: <p>This is my <a href="http://services.odata.org/V3/(S(blacksheep))/OData/OData.svc/Products?$format=json" rel="nofollow noreferrer">OData-Service</a>.</p>
  
  <p>Both read and write are allowed. The GET-Method is working fine, but I am not able to POST something new. I Want to POST a new entry with POSTMAN.</p>
  
  <hr>
  
  <pre><code>(POST-Method) 
  Link: http://services.odata.org/V3/(S(blacksheep))/OData/OData.svc/Products
  Auth: NoAuth
  Headers: Content-Type = application/json
  Body (raw JSON):
  {   
      "ID": "11",
      "Name": "Lern-CD",
      "Description": "Lerne die Theorie in 10 Minuten!",
      "ReleaseDate": "1995-10-01T00:00:00",
      "DiscontinuedDate": "1995-10-01T00:00:00",
      "Rating": 1,
      "Price": 22
  }
  </code></pre>
  
  <hr>
  
  <p>The error message is:</p>
  
  <p><strong>Error processing request stream. Type information must be specified for types that take part in inheritance.</strong></p>
  
  <p>Does anyone know what is missing here? Do I need to give additional information at the headers? Or something else?</p>
  
  <p>I tried so many things, but I was not able to find the solution.. :/</p>