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Werk #22008: Event Console alerts not matched by notification rules migrated from 2.3

Component Notifications
Title Event Console alerts not matched by notification rules migrated from 2.3
Date Jul 22, 2026
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
2.4.0p36 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

Werk #18082 changed how notification rules match Event Console alerts: since Checkmk 2.4 an alert only matches when "Event console alerts" is explicitly enabled in the rule.

Notification rules created in 2.3 were not aware of this option. After an update to 2.4 they therefore silently stopped matching Event Console alerts, even though nothing was changed in the rule.

The update now adjusts such rules automatically to the changed behaviour so that they keep matching Event Console alerts as before. "Event console alerts" is only enabled for rules that already matched Event Console alerts in 2.3; rules that did not match them are left unchanged. For the adjusted rules the change is visible in the "Triggering events" section, where "Event console alerts" is now enabled.

No manual interaction is required.

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