Thanks again for the response.
At first, I was doing a select on the "client" table and using the "client_id" directly.
Can you please confirm that this would/could not work?
Also, it is my understanding that the sys_userid is the "system id" of the person currently logged in.
How would this work in the case of a remote user (since this is required to use the API to begin with) - or - am I missing something?