number of users stored against a tenant is approaching the limit imposed by the subscription
“Users stored” wouldn’t be the right metric to check against the subscription, because the subscription is about MAUs = monthly active users. So a user only counts as active if they at least login once in a month.
You can store 1 Mio users in the DB, if only 100 users login, it’s only counted as 100 users.
We started getting reports of users successfully signing in but we were unable to find those users in the dashboard to assign them permissions (although we could see their signin attempt in the Auth0 logs). Bumping our subscription solved this problem.
Weird, as there shouldn’t be a technical hard limit on the number of users. And if they appear in the log but not in the dashboard… it might just be a UI thing… you can check with the Management API to be sure: Auth0 Management API v2
Note that you can always get the usage stats via Auth0 Support Center (click on your Avatar in the Dashboard, then “Account Usage”)
About getting warnings upfront: not tested and what the query should look like in detail, but you might use the Lucene query API endpoint Auth0 Management API v2 and query by the user.last_login attribute