---
slug: "azure-sentinel-21vianet-china-retirement"
title: "Microsoft Sentinel: retirement in Azure operated by 21Vianet"
summary: "Retirement date for Microsoft Sentinel in Microsoft Azure operated by 21Vianet (Azure in China): 18 Aug 2026. After that date the Microsoft Sentinel portal and any associated Sentinel services or features are no longer accessible in that environment."
cloud: "azure"
service: "Microsoft Sentinel"
service_slug: "sentinel"
category: "service"
type: "retirement"
announced_date: "2025-08-20"
effective_date: "2026-08-18"
effective_precision: "day"
replacement: null
affected_versions: []
source_url: "https://azure.microsoft.com/updates?id=498754"
extra_source_urls: ["https://learn.microsoft.com/en-us/azure/china/overview-operations"]
vendor_ref: "498754"
last_checked_at: "2026-11-12T09:55:19.345Z"
created_at: "2026-11-13T13:36:44.208Z"
updated_at: "2026-11-13T13:36:44.208Z"
url: "https://eolwatch.dev/items/azure-sentinel-21vianet-china-retirement"
short_url: "https://eolwatch.dev/i/5"
markdown_url: "https://eolwatch.dev/items/azure-sentinel-21vianet-china-retirement.md"
json_url: "https://eolwatch.dev/items/azure-sentinel-21vianet-china-retirement.json"
source_note: null
---

# Microsoft Sentinel: retirement in Azure operated by 21Vianet

Retirement date for Microsoft Sentinel in Microsoft Azure operated by 21Vianet (Azure in China): 18 Aug 2026. After that date the Microsoft Sentinel portal and any associated Sentinel services or features are no longer accessible in that environment.

- Effective date: 18 Aug 2026
- Cloud: [Azure](https://eolwatch.dev/cloud/azure.md)
- Service: [Microsoft Sentinel](https://eolwatch.dev/services/azure/sentinel.md)
- Type: Retirement
- Category: [Service](https://eolwatch.dev/categories/services.md)
- Replacement: Not stated by vendor
- Announced: 20 Aug 2025
- Official source: [azure.microsoft.com](https://azure.microsoft.com/updates?id=498754)
- Last checked: 12 Nov 2026

## What breaks

Microsoft announced a plan to retire and remove all features and services related to Microsoft Sentinel within Microsoft Azure operated by 21Vianet, also known as Azure in China. After the retirement date, customers can no longer access the Microsoft Sentinel portal or any associated Microsoft Sentinel services or features in that environment.

## What to do

Work with your account representative for Microsoft Azure operated by 21Vianet to assess the impact of this retirement on your operations in that environment.

## Replacement

Not stated by vendor.

## Sources

- [Official source](https://azure.microsoft.com/updates?id=498754) (azure.microsoft.com, Official)
- [Additional source](https://learn.microsoft.com/en-us/azure/china/overview-operations) (learn.microsoft.com, Official)

Last checked against the first source in this list on 12 Nov 2026.

Page: https://eolwatch.dev/items/azure-sentinel-21vianet-china-retirement | JSON: https://eolwatch.dev/items/azure-sentinel-21vianet-china-retirement.json

The text on this page is drafted with AI assistance from the vendor's text, checked against the official source and approved by a person before it is published.