This operation allows you to compose a document based on an existing message item type, using a single element of a message item type instead of the full schema of the selected message item type. This operation can also allow you to receive message items for a message item type schema that does not contain a target namespace value. Creating a Receive XML Message as payload operation also automatically creates an HIS on-ramp using the configuration settings from the operation.
This operation is intended for use with the HIS Workflow XML Messaging feature, which is a separate feature from the Enterprise Integration Server and does not have a corresponding operation in the Enterprise Integration Server documentation.
After selecting the Receive XML Message as payload web operation action in the Create Web Operation wizard, the Select Message Item Type dialog box is displayed.