---
names:
  full: "Azure Cosmos DB Account MongoDB API version is below 4.2"
  contextual: "Account MongoDB API version is below 4.2"
description: >
  Ensure that Azure Cosmos DB accounts using the MongoDB API use server version
  4.2 or later to use the more cost-efficient storage format.
type: "BEST_PRACTICE"
categories:
  - "COST"
  - "RELIABILITY"
frameworkMappings:
  - "/frameworks/cloudaware/cost-efficiency-and-optimization/resource-optimization"
  - "/frameworks/cloudaware/resource-reliability/infrastructure-modernization"