SA

Notification Health & Diagnostics

Delivery latencies, acknowledgment propagation, and quiet-window telemetry (ADM-09).

Alert-to-phone p95 (NFR-C2)4.2 sTarget: ≤ 10.0 s
Ack propagation p95 (NFR-C3)1.8 sTarget: ≤ 5.0 s
Overall Delivery Success98.9%Past 7 days across 2,410 alerts
Quiet Window Silenced142Delivered silently per schedule

Push Notification Delivery Funnel

1. Sent from Engine

2,410

2. Delivered to Device

2,384 (98.9%)

3. Opened by Member

2,192 (91.9%)

4. Acknowledged

2,108 (96.1%)

Failure reasons grouped

• Push token expired: 14 (53%)• Device offline / unreachable: 8 (30%)• OS notification permission revoked: 4 (17%)

Recent Notification Attempts

Event IDCategoryCameraTimestampDelivery stateModePhone Latency
evt_fall_8820FALLLiving Room Main22/10/2026 09:15ACKNOWLEDGEDRING4200ms
evt_posture_8821Posture alert (experimental)Hallway & Stairs22/10/2026 07:40DELIVEREDSTANDARD3100ms