title: Facebook/Instagram Ads API: "The page-id and/or post-id didn't resolve to a valid story."
body: <p>I am trying to create an Ad on Instagram via the Facebook Ads API. Our system currently works fine with creating Ads to be published on Facebook, however when I try to create an Ad for Instagram I get the following error:</p>
  
  <pre><code>Message: Call was not successful
    Method:  POST
    Path:    https://graph.facebook.com/v3.2/act_115305119273030/ads
    Params:  {'name': 'Ad Name', 'adset_id': '120330000035581316', 'creative': '{"object_story_spec":{"instagram_actor_id":"2318910634825810","link_data":{"caption":"www.puxaforte.com","description":"Description Text","link":"http://www.puxaforte.com/index2.html","message":"Message Text","name":"Headline Text","picture":"https://storage.googleapis.com/advio-middleware-local-develop/5fc51781-dd91-4a0d-ac7a-0151dee97b92.jpg"},"page_id":"422303898241282"}}', 'status': 'PAUSED'}
  
    Status:  400
    Response:
      {
        "error": {
          "message": "Invalid parameter",
          "type": "OAuthException",
          "code": 100,
          "error_subcode": 1487531,
          "is_transient": false,
          "error_user_title": "Cannot load publish info",
          "error_user_msg": "The page-id and/or post-id didn't resolve to a valid story.",
          "fbtrace_id": "CJpZSFaGMSP"
        }
      }
  </code></pre>
  
  <p>I have updated my code on the Facebook only version to include the <code>instagram_actor_id</code> and the <code>page_id</code> is the ID of the Facebook Page affiliated to the Instagram account.</p>
  
  <p>I don't understand what it means by "resolve to a valid story" and a long time spent looking at the docs and googling online has yielded no results! Has anyone had a similar problem?</p>
  
  <p>Thanks in advance!</p>