title: How to update a scheduled campaign's start date via FB Ads Api?
body: <p>Does FB Ads Api allow updating the start time of an existing but not yet live campaign?</p>
  
  <p>It is possible to change start time through the Facebook Ads Manager UI, but the API documentation has only support for updating end_time and not start_time: <a href="https://developers.facebook.com/docs/reference/ads-api/adcampaign/#update" rel="nofollow">https://developers.facebook.com/docs/reference/ads-api/adcampaign/#update</a></p>
  
  <p>Sample Use Case Scenario:</p>
  
  <ul>
  <li>Assume, today is December 16</li>
  <li>An existing Campaign is scheduled to start on Dec 25</li>
  <li>User wants to launch the campaign a few days earlier on Dec 23</li>
  </ul>
  
  <p>Is it possible to adjust the start time in this scenario through the API?</p>
  
  <p>It would be nice to do so, instead of workaround of deleting the campaign and re-creating a campaign with same data but with a different start time.</p>