Test-MgIdentityCustomAuthenticationExtensionAuthenticationConfiguration

POST /identity/customAuthenticationExtensions/{customAuthenticationExtension-id}/validateAuthenticationConfiguration (v1.0)

Module: Microsoft.Graph.Identity.SignIns

Permissions

Delegated (work or school)

• CustomAuthenticationExtension.Read.All (least privilege)
• CustomAuthenticationExtension.ReadWrite.All

Delegated (personal)

No permission metadata available for this account type.

Application

• CustomAuthenticationExtension.Read.All (least privilege)
• CustomAuthenticationExtension.ReadWrite.All

Source: Microsoft Graph PowerShell SDK metadata

Confirm property-specific permissions, Entra roles, licensing and ownership requirements in the official documentation. SDK metadata outside the verified sample is not independently certified.

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