My processes can update user information in EMPLOYEE.

A certain process needs to add the users to sys_user. I can't directly add them, your add_user (or whatever it might be called) process needs to add them. I can't assign sys_id's, and other automatically populated fields. Your add_user procedure should be able to do it. I want to harness your add_user procedure to take the information from my EMPLOYEE table, and add the users to Service Now.