Step 1. Understand Which Authorization Exit Routines You Must Write

In order to ensure that only authorized users at your node can send commands and file-to-file transactions, you must code the authorization exit routines. Even if you decide you do not need to use all of the authorization exit routines you must still code them to at least send a return code back to the calling BDT module authorizing the commands and transactions. Otherwise, BDT will fail the commands and transactions.

If you want to test BDT before coding your own authorization exit routines you can do so by using the sample exit routines in SYS1.SBDTSAMP. But you must realize that these sample routines are provided for testing purposes only; they allow BDT to run, but they do not enforce the security policies at your site.