New WF_DIRECTORY APIs for Ad Hoc Users and Roles
A new set of directory service APIs are available for you to create and manage ad hoc users and roles in a workflow process. To support ad hoc users and roles, a new Expiration_Date column has been added to the WF_USERS and WF_ROLES views and two new columns have been added to the WF_LOCAL_USER_ROLES table to keep track of the originating system of the user and roles.
Ad Hoc Users and Roles
Workflow Directory Service APIs
Setting Up an Oracle Workflow Directory Service