How do I see if an authenticated web application scan was successful or not?

If you have configured authenticated web application scans and would like to check whether the authentication was successful, you can find this information in the scan warning message. For more details, you will need to check the info vulnerabilities in the scan result report or the Vulnerability Manager. Please activate the info severity level in the filter to access the information. 

Authentication failure (HID-3-0-10116) 
The information in this HID states the result of the authentication and whether our scanning engine was unable to log in. If this HID is not present, the login was successful.