No data in API or webhook

If Tempivo shows temperatures, the device and NB-IoT work. The gap is integration.

Checklist

1. Confirm Cellular API (or API integrations) is on for the organization.
2. GET /assets with Authorization: Bearer and a live key. 401 means the key, not the sensor.
3. Cargo orgs often send probeTemp, not waterTemp, when water temperature is off.
4. Webhook URL must be HTTPS. Respond 2xx. Check last delivery status on Integrations.
5. Verify HMAC (X-Tempivo-Webhook-Signature) if you set a secret.
6. Deduplicate on webhook id.

See REST API getting started, webhooks, and cellular measurement webhook.