Solution : https://service.sap.com/sap/support/notes/1464027 (SAP Service marketplace login required)
Key words :
wsdl destination templates refering, workaround youcan restart, issue appears sporadically, dynamic proxy reason, terms web service, web service, issue occurs, wsdl cache, dynamic api, sap netweaver 7
Related Notes :
1589954 | AWS webservices cache not updated after wd app change |
1521040 | Configuration changes are not reflected in subsequent calls |