> ## 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.

# Error-Cell Rate %, Google Sheets KPI card, Vortex IQ Nerve Centre

> Share of read rows containing #REF!/#N/A/#DIV/0!/#VALUE! when rendered FORMATTED_VALUE. These poison any importer that trusts the cell.

**[Nerve Centre KPIs](/nerve-centre/kpi-cards/google-sheets) · [Audit Profile](/nerve-centre/kpi-cards/google-sheets/audit) · [Sentiment Settings](/nerve-centre/kpi-cards/google-sheets/sentiment)**

## At a glance

* **Category:** Freshness & Integrity
* **Type:** Key Metrics
* **Chart:** gauge
* **Format:** percent
* **Time window:** RT
* **Alert trigger:** >1%

## Calculation

Share of read rows containing #REF!/#N/A/#DIV/0!/#VALUE! when rendered FORMATTED\_VALUE. These poison any importer that trusts the cell.

## Known limitations

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