Missed run
A missed run is a workflow execution that was expected but never happened. Because no execution started, nothing errored, so n8n raises no alert. A missed run is detected by comparing the time since the last execution against the workflow's expected interval plus its grace period.
How is a missed run detected?
A workflow qualifies when it is active, monitoring is enabled, it has a known expected interval, and its instance is not down. If the time since its last execution exceeds the expected interval plus the grace period, a missed-run incident opens. It resolves automatically as soon as a new execution lands.
Related terms
- Expected interval
How often a workflow should run — parsed from its cron configuration, or learned from execution history when the cadence is regular enough to trust.
- Grace period
The grace period is the slack added to a workflow's expected interval before a late run counts as missed — the dial between noisy alerts and slow ones.