Investigations
When Lumen detects an anomaly it can't explain from context alone, it opens an investigation. An investigation is a full automated root cause analysis — Lumen runs a sequence of checks, connects the dots, and delivers a verdict.
How an investigation is triggered
Lumen continuously monitors your data. An investigation opens when:
- Conversion or event volume drops significantly vs. the rolling baseline
- A data source stops sending data
- A tracked change (GTM publish, theme deploy) coincides with a metric shift
- A GA4 or GTM audit surfaces a critical misconfiguration
Minor fluctuations don't trigger investigations — Lumen distinguishes noise from signal using your property's historical patterns.
Reading an investigation
Each investigation is structured to be readable top-down in under a minute.
Verdict
The first thing you see: what broke, how severe it is, when it started, and the estimated impact.
Conversion tracking stopped firing
Severity: Critical · Started: March 21, 14:32 · ~3 days of data affected
Evidence trail
A step-by-step log of every check Lumen ran and what it found. Each step shows the check, the result, and whether it contributed to the verdict.
| Step | Finding |
|---|---|
| Checked event volume | Purchase events dropped to 0 at 14:32 |
| Checked GTM activity | Container v47 published at 14:28 |
| Diffed container versions | Checkout conversion tag removed in v47 |
| Checked GA4 | No purchase events received since 14:32 |
The trail makes it clear how Lumen reached its conclusion — and gives you enough context to verify it yourself.
Recommended fix
A concrete next step. For common issues, Lumen links directly to the relevant setting or surfaces the exact change that needs to be made.
The purchase conversion tag was removed in GTM container v47.
Restore the tag and publish a new container version.
Verdict actions
After reviewing, mark the investigation:
- Confirm — issue is real, you're on it (or it's fixed)
- False positive — Lumen got it wrong; this feedback improves future detections
- Escalate — flag for a team member or external support
Investigation list
All open and past investigations are available under Lumen → Investigations.
| Column | Description |
|---|---|
| Status | Open, confirmed, false positive, or resolved |
| Severity | Critical, warning, or info |
| Started | When the anomaly was first detected |
| Property | Which attribution ID is affected |
| Summary | One-line description of the verdict |
Filter by status, severity, or date range. Click any row to open the full investigation detail.
Agency view
If you manage multiple clients, the client list shows an investigation count badge on any property with open investigations. Critical issues surface at the top regardless of sort order — you won't miss a client with a broken pixel because it sorted below the fold.