Azure Rest api AuthenticationFailedInvalidHeader
<p>I am calling Azure's REST API to get 'List all available virtual machine sizes in a region' from SOAPUI but it gives me error in response..
{"error": {
   "code": "AuthenticationFailedInvalidHeader",
   "message": "Authentication failed. The 'Authorization' header is provided in an invalid format."
}}
I have set the Authorization header too..</p>