A REST Web Service Consumer transformation supports unnamed arrays only in a response message but not in a request message. To parse an unnamed array schema defined in the Method Output Definition, the parent element of complexType or simple type array elements must be of name
xmlRooot
.
In a Rest Web Service Consumer transformation, you must define xmlRoot as the child element of the xmlRoot element with maximum occurs set to unbounded and the elements in unnamed array as child elements of the xmlRoot element.
The following image shows the defined method output for the unnamed array: