A character variable that specifies the URI of a SOAP role. The role can be used to indicate the recipient of a SOAP header element.
Call this method once you have associated the XML with a SOAP header entry using the SET-NODE( ) method.
Note: In SOAP Version 1.2, the SET-ROLE method replaces the SOAP Version 1.1 SET-ACTOR method. A runtime error occurs if the AVM sends a ROLE attribute in a SOAP header to a SOAP Version 1.1 Web service.