A request from a User for a Service is received by an Application. An Open Authorization (OAUTH) Client of the Service is requested from a Service Instance of the Service. A copy OAUTH Client of the Service specific to the User is provided based on a clone OAUTH Client associated with the Service Instance. A Token is obtained to access the Service by providing the copy OAUTH Client to a User Account and Authorization (UAA) entity. Access to the Service is obtained by providing the Token.