title: Graph API Post cannot be published via message_tags field
body: <p>When posting to the /PROFILE_ID/feed method with a properly formatted message_tags field the post appears in the feed but message_tags data is not present in the feed or visible via the API.</p>
  
  <p><code>message_tags</code> info is documented here:</p>
  
  <p><a href="https://developers.facebook.com/docs/reference/api/post/" rel="nofollow">https://developers.facebook.com/docs/reference/api/post/</a></p>
  
  <p>My test code to expose the issue:</p>
  
  <pre><code>curl -F 'access_token=VALID_TOKEN' \
  -F 'message=Mike Lombardo Fuffy Fuffy Fuffy!' \
  -F 'privacy={"value":"CUSTOM","friends": "SELF"}' \
  -F 'from={"name":"Mike Bannister","id":"1254711849"}' \
  -F 'to={"data":[{"name":"Mike Lombardo","id":"1424749454"}]}' \
  -F 'message_tags={"data":[{"id":"1424749454","name":"Mike Lombardo","offset":0,"length":13}]}' \
  https://graph.facebook.com/mikebannister/feed
  </code></pre>
  
  <p>Should I expect this to work? If not shouldn't the docs indicate that message_tags is read only? Would love any feedback on this! Thanks you.</p>
  
  <p>Update: I'm starting to settle into believing this won't work because only Facebook (or a user manually using Facebook) can tag another User in a message. I think this might be implied by the table here: <a href="https://developers.facebook.com/docs/reference/api/#publishing" rel="nofollow">https://developers.facebook.com/docs/reference/api/#publishing</a> because it doesn't list <code>message_tags</code> as an argument even though, for instance, it doesn't list <code>privacy</code> but accepts it as an argument.</p>
  
  <p>-Mike</p>
  
  <p>Bug on Facebook tracker</p>
  
  <p><a href="https://developers.facebook.com/bugs/299231603421140" rel="nofollow">https://developers.facebook.com/bugs/299231603421140</a></p>