5.    To save all of your changes to the defined attribute mappings for the selected toolkit application, click  Save and Close, which returns you to the appropriate  Configure Application  dialog. Validating Your Toolkit Application Before mapping endpoints to your toolkit application, you need to ensure that the application is able to run properly. You can do this by running your application from the command line. 1.    At the command prompt (or in a UNIX shell), start your application. Your application should be waiting for input from STDIN. 2.    You should now type: SHUTDOWN Make sure you enter only capital letters. Press  Enter. Your application should shut down. If your application performs these functions properly, then use the GUI to map the endpoint tested to your toolkit application. For details and procedures, see the following section,  “Editing Endpoint Mappings.” Editing Endpoint Mappings Once the selected toolkit application’s configuration and attribute mappings are defined, you can edit its endpoint mappings, which determine the targets for a populate or distribution of the mapped user profiles (also see  Editing Profile Mappings”  on page 35). Note:   The custom application must be installed on the endpoints before they can be mapped. Perform the following steps to edit the endpoint mappings for a selected application: 1.    The  Endpoint Mappings  group box, in the lower left of the Manage Toolkit Applications  dialog, includes a list of names of current endpoint mappings as populate or distribution targets for Managing Toolkit Applications 32 User Administration Version 3.8