title: SSRS 2012 Subscriptions - Credentials used to run this report are not stored
body: <p>I'm trying to create a subscription on an SSRS 2012 report, working from a SQL Server 2008 database. From what I've read elsewhere, if I store the credentials in an individual report / stored datasource in the Report Manager, I should be able to create a subscription. </p>
  
  <p>Unfortunately, for some reason this isn't happening for me. I have tried storing the credentials in a single reports, and also creating a datasource with stored credentials, with no luck (the 'Test Connection' button shows a successful connection).  Please see screenshots. </p>
  
  <p>Can anyone suggest what else I may still need to do to successfully create subscriptions?</p>
  
  <p>Thanks,
   Gavin</p>
  
  <p><a href="https://i.stack.imgur.com/W1y1T.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/W1y1T.png" alt="Stored credentials"></a></p>
  
  <p><a href="https://i.stack.imgur.com/wE9ZK.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/wE9ZK.png" alt="Error message"></a></p>