Hi EHasani
Can we please start fresh where you tell us more about your environment and the error you are getting?
Which NBU version?
Are you using traditional script-based policy or Intelligent policy?
The error in the original post was :
Error: Failed to query database metadata for <test>
If same/similar error, please ensure that dbclient log folder exists on the SQL client (logging level 3 should be fine).
dbclient log will show the username that is used for the backup and what the access/authentication issue is.
NBU Client Service account needs more than just Administrator priveleges - it also needs SQL dba priveleges.
Always good to start NBU Client services with same logon account as SQL services.
See this TN:
NetBackup for Microsoft SQL Server database agent: What permissions are required for the backup and restore of Microsoft SQL Server databases?
https://www.veritas.com/support/en_US/article.100017184