Troubleshooting

Install-time failures, API error codes in playbook runs, data that doesn't appear, and where to escalate.

Updated July 2026Microsoft Sentinel

Troubleshooting Documentation

The failure modes below are ordered the way you'll hit them: install-time errors first, then API errors in playbook runs, then data that doesn't show up where you expect it.

Install-time failures

SymptomLikely causeFix
Wizard rejects the secret URITrailing whitespace, a ?api-version=… query string, or a /keys///certificates/ URI instead of /secrets/Paste the clean secret URI; the version suffix is optional
Deploy fails with AuthorizationFailedInstaller lacks role-assignment rightsGet Owner or User Access Administrator on the resource group
Workspace missing from the wizard dropdownWorkspace is in a different resource group, or CLI-enabled Sentinel missed the legacy SecurityInsights resourceInstall into the workspace's resource group; confirm the workspace appears in the Sentinel workspace picker
Playbook runs fail with 403 from Key VaultVault uses access policies, not RBACSwitch the vault to the Azure RBAC permission model, or grant the identities via access policy

API errors in playbook runs

Playbooks retry transient failures with exponential backoff (3 attempts) and log errors without failing the incident workflow.

CodeMeaningWhat to do
400Malformed input — wrong indicator type for the playbook, or reserved Cypher keywords in the inputValidate the input format; test with a simple indicator like 1.1.1.1
401The Key Vault secret does not hold a valid Whisper API keySet the real key: az keyvault secret set --vault-name <vault> --name whisper-api-key --value <key>, then re-run
408Query exceeded its timeout — expected occasionally for BGP historyThe playbook retries with a simplified query on its own; persistent timeouts usually mean quota throttling
429Daily API quota exceeded — all playbooks fail at once, with a resetAt in the responseWait for the daily reset, scope automation rules to high-severity incidents, or upgrade the plan
502 / 503Transient Whisper API or upstream feed issueRetries usually recover it; check status.whisper.security if it persists

Test the key directly when in doubt:

curl -H "X-API-Key: <your-key>" https://graph.whisper.security/api/actuator/health

Data not appearing

A custom table doesn't exist yet. Tables are created on first write. Run any playbook on a test incident, wait a few minutes, then check:

WhisperThreatIntel_CL | take 1

A playbook succeeded but wrote nothing. Open the Logic App → Runs → the run in question, and check the table-write action for a schema or DCR error. Verify the whisper-* data collection rules exist in the resource group.

WhisperHistory_CL stays empty. The daily WHOIS and BGP pipelines ship with empty watchlists and collect nothing until you set them — see Configuration.

Workbook panels are empty. The Incident Enrichment Audit workbook reads Logic App telemetry from AzureDiagnostics; rows appear a few minutes after the first playbook run with diagnostics enabled. Other workbooks need rows in the Whisper tables first:

union withsource=WhisperTable Whisper*_CL
| summarize Rows = count(), Latest = max(TimeGenerated) by WhisperTable

An automation rule never fires its playbook. The one-time playbook-permission grant is missing — step 1 of Configuration.

Escalating