Notify self-managed admin as they approach the user limit in their subscription
Problem
Self-managed admins don't get any alerts when they are approaching their user limit. This can cause surprises for customers at renewal, and when they are contacted or charged for overages.
Proposal
We should provide alerting to the admin potentially via the following modes:
- In-instance banner displayed to the admin, on all pages.
- Email to admin
- Thoughts about a notification bubble on the admin wrench to call attention? (maybe overkill given the first step)
I'd like to get feedback on cadence of these alerts. Example, this happen when x% of the seats are used?