Siebel Field Service Guide > Using Third-Party Invoicing Applications > Optional Setup Procedures >
You may want to customize the third-party invoicing function to add special functions or additional business processes. For information about extending the data that is received from the third-party invoicing system, see Application Services Interface Reference.
Defining Service Ports
You may want to define service ports different from, or in addition to, the ones provided with your Siebel application. For information about defining customized service ports, see Application Services Interface Reference.
Creating Workflow Processes
You may want to define workflow processes to automate certain functions associated with third-party invoicing. For information about creating workflow processes, see Siebel Business Process Framework: Workflow Guide.