Process Properties of the Business Service Step
Siebel CRM can use the process property of a business service step as an input argument or output argument for a business service method. The Data Type field of the process property must contain one of the following values:
Hierarchy
Integration object
If Siebel CRM must call a Workflow Process through a business service, then you can map the data that the input and output property sets contain to or from a process property. This configuration is useful if Siebel CRM must run a Workflow Process from a script.