Confluence License Alert Notifications
Configure Alert to Notify when License reaches threshold.
Simply checks the total active license users and threshold limits.
Frequency / Triggers alerts through default plugin schedule.
Disable if decided to trigger via below REST API.
Below rest api allows you to customize trigger / more frequently outside default plugin schedules.
% curl -u admin -XGET http://localhost:8090/rest/deactivateusers/1.0/form/user/alert/trigger
Slack Alert demo.