Thanks for using the Q&A platform.
Azure App Configuration does support Private Endpoints in Azure China, and it uses a similar Private DNS zone naming convention as global, but with the CN-specific domain suffix.
The global Private Endpoint DNS documentation doesn't explicitly list China Cloud zones. However, Microsoft’s official documentation for Azure in China confirms that service endpoints use the .azure.cn domain, and Azure App Configuration specifically uses *.azconfig.azure.cn.
Find additional information here: https://learn.microsoft.com/en-us/azure/china/concepts-service-availability#azure-in-china-rest-endpoints
This means the corresponding Private DNS zone suffix is privatelink.azconfig.azure.cn.
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Regards,
Obinna.