The WSDL file must be WSDL 1.1 compliant.
The WSDL file must be valid.
Operations that you want to include in a web service or a Web Service Consumer transformation must use Document/Literal encoding.
The WSDL import fails if all operations in the WSDL file use an encoding type other than Document/Literal.
The Developer tool must be able to access any schema that the WSDL file references.
If a WSDL file contains a schema or has an external schema, the Developer tool creates an embedded schema within the WSDL data object.
If a WSDL file imports another WSDL file, the Developer tool combines both WSDLs to create the WSDL data object.
If a WSDL file defines multiple operations, the Developer tool includes all operations in the WSDL data object.
When you create a web service from a WSDL data object, you can choose to include one or more operations.