> ## Documentation Index
> Fetch the complete documentation index at: https://docs.vortexiq.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Message Volume Drop Alert, Microsoft Teams KPI card, Vortex IQ Nerve Centre

> Message-volume change vs the prior 30d; fires when a team goes quiet per the collab_message_volume_trend band.

**[Nerve Centre KPIs](/nerve-centre/kpi-cards/microsoft-teams) · [Sentiment Settings](/nerve-centre/kpi-cards/microsoft-teams/sentiment)**

## At a glance

* **Category:** Alerts & Anomaly Detection
* **Type:** Supporting Metrics
* **Chart:** kpi
* **Format:** percent
* **Time window:** 30D vsP
* **Alert trigger:** drop >40% vsP

## Calculation

Message-volume change vs the prior 30d; fires when a team goes quiet per the collab\_message\_volume\_trend band.

## Known limitations

*Known limitations, FAQs, or reconciliation notes specific to this card. Replace this block when authored.*