Since SOAP Easyvista is no longer mainteined they propouse to swith to REST API
This module is very handy in order to open tickets directly to Easyvista from Centreon
https://wiki.easyvista.com/xwiki/bin/view/Documentation/Integration/WebService/
https://wiki.easyvista.com/xwiki/bin/view/Documentation/Integration/WebService%20REST/