Multiple Root Elements in Message Schemas
In a WSDL document, the schema defined in the <types> section may have multiple root elements, corresponding to multiple messages used by one or more operations. When the PeopleSoft system consumes such a WSDL document, the entire message schema contained in the WSDL document gets associated with each of the service operation messages when the PeopleSoft system generates the integration metadata.
Use the element name that appears in the Comments text box of the message definition to construct the XML data for the correct schema fragment in the message.