CBM notifies you through a single webhook (Settings → Failure alerts) when something is
wrong. The body carries both content (Discord) and text (Slack), so one URL works for
Discord, Slack, or any custom receiver. Leave it blank to disable.
Test it with Send test on the Settings page.
| Alert | When |
|---|---|
| Failed | A backup ran and failed (the agent reported an error, or the job timed out), or a scheduled run couldn't even be queued (e.g. no agent on the resource's server). |
| Missing | Reconciliation found a backup whose files were deleted at the destination — the snapshot is flagged missing. You learn about it before a restore needs it. |
| Overdue | A scheduled backup never ran when it should have (controller was down, no agent online, …). Detected by an hourly sweep, debounced so you're alerted once per missed run. |
Each alert names the resource and instance, and links back to the snapshot/snapshots page.
They catch different failure modes:
- Failed = it ran, but broke.
- Missing = it succeeded, but the files later vanished from the destination.
- Overdue = it never ran at all.
Together they close the "I thought I had backups" gap from all three sides.