> ## 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.

# Conditional Check Failures (1h), Amazon DynamoDB KPI card, Vortex IQ Nerve Centre

> ConditionalCheckFailedRequests - DynamoDB-distinctive; a spike often signals an optimistic-locking contention storm.

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

## At a glance

* **Category:** Errors
* **Type:** Supporting Metrics
* **Chart:** kpi
* **Format:** number
* **Time window:** 1h
* **Alert trigger:** >2σ vs 7D baseline

## Calculation

ConditionalCheckFailedRequests - DynamoDB-distinctive; a spike often signals an optimistic-locking contention storm.

## Known limitations

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