User management is not showing

Hi,
I am using emqx v5.5.1 and I have setup mongodb for authentication, it shows connected in dashboard but there is no user management tab as in built in database. How to fix it? My filter looks like { "username": "${username}" }

Hello,

Authentication and authorization backends in EMQX are logically split into two categories: read-only and read-write. User management tab is only available for the read-write backends, because changing user information involves writing to the database.
I believe only the builtin backends are read-write.