The diagrams below illustrate components of a WSDL file. A WSDL file requires both the Web service interface and the access description. These areas are handled separately because they are defined at different times: the Web service interface is defined and supplied by SAP; while the access description is dependent on specific company data and is therefore created at a later time.
Data type and structure description (XML schema)
Name of the message
Name of the port type (definition of the interface for input/output message)
Binding: Connection between the interface and the structure of the message (SOAP) and additional communication data if necessary (user, password, etc.)
Service: Specification of the message recipient by URL