Enabling the plugin on a VEEAM host gives the following error: Request failed with status code 500: {"errorCode":"ServiceUnavailable","message":"Th e value of enum EJobStatus is not supported (Parameter 'source')\r\nActual value was Stopped.","title":"The value of enum EJobStatus is not supported (Parameter 'source')\r\nActual value was Stopped.","status":500}.

Going into the Get Metric script and chaning x-api-version: 1.2 to x-api-version: 1.3-rev1 gets us started but results in multiple Problems, Screenshot attached.

ALso Proxies discovery errors with:

Cannot create item "veeam.proxy.raw[wosrvbkpproxy.wolf.local]": item with the same key already exists.
Cannot create item "veeam.proxy.server.raw[wosrvbkpproxy.wolf.local]": item with the same key already exists.
Cannot create item "veeam.proxy.maxtask[wosrvbkpproxy.wolf.local]": item with the same key already exists.
Cannot create item "veeam.proxy.server.name[wosrvbkpproxy.wolf.local]": item with the same key already exists.
Cannot create item "veeam.proxy.server.type[wosrvbkpproxy.wolf.local]": item with the same key already exists.

As it seems, zabbix is unable to monitor current VEEAM.