Problem
In the legacy alert builder, frequency-based conditions (e.g. number of events > X, number of users > X) could be added directly as WHEN triggers alongside "a new issue is created." The new alert builder no longer supports these as WHEN triggers — they are now IF filters only.
Resolution:
To replicate ANY-style logic across multiple frequency-based conditions, create multiple IF/THEN blocks within a single alert rule — one per condition.
For example, to fire when a new issue is created or event volume spikes or user count spikes, create three separate IF blocks under a single alert only WHEN: an issue event is captured, the relevant IF filter (e.g. number of events > 3 in 5 minutes), plus any shared attribute filters, and the same THEN action. The alert fires when any block's conditions are met.
If you manage alerts via Terraform some of the legacy triggers are still supported using legacy_trigger_conditions but not the frequency based onces.
For now the API does support frequency based trigger conditions but we intend to deprecate this eventually.