title: Which user credentials does Integration Services Catalog use to execute packages?
body: <p>We have an SSIS package which reads text files from a shared network directory. When I execute this package in SSDT it works fine. When we however deploy the project to the <em><code>Integration Services Catalog</code></em> and attempt to run the same package from there I get an error indicating that access to the directory is denied.</p>
  
  <p>I've always been under the impression that when I log on to the database and execute an SSIS package from the Integration Services Catalog that it uses MY user credentials and would thus have access to the directory in question as my user profile has access to it.</p>
  
  <p>Is this not the case? Does SQL Server use a different user to execute packages from the IS catalog? Is there an option to <em><code>run as another user</code></em>? Any input will be appreciated.</p>