https://community.appian.com/discussions/f/administration/2651/hi-there-we-are-having-some-issues-to-test-a-feature-our-objectiveHi there, We are having some issues to test a feature, our objective is the following: - A user logs in Appian and automatically we have to trigger a web service to know if the user has access to an Application through the data in this system. - Afteren-USTelligent Community 12https://community.appian.com/thread/9231?ContentTypeID=1Thu, 08 May 2014 13:07:26 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:b9ec84bb-98b6-4ab1-8f0a-7cc0be081813Sathya SrinivasanAre you using this mechanism to grant access to an application in Appian? If that&#39;s the case, why not use the standard Appian out of the box identity management to define the security privileges for the application and add or remove users from the group based on a periodic check via the WS? I think you might be able to achieve this is a fairly straight-forward and OOTB way. I would recommend you look into this option first.<div style="clear:both;"></div>https://community.appian.com/thread/9201?ContentTypeID=1Thu, 08 May 2014 00:58:15 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:b9643c3d-a72f-495a-9d6b-23e1e3a96594Mike CichyThis would be a custom authentication provider that you would have to write to get all you are describing. Check the Authentication page in our docs and spring security docs for more info on creating custom auth providers.<div style="clear:both;"></div>