在评论中讨论后，我们发现该应用实际上是在另一个目录中注册的多租户应用.

After a discussion in the comments, we discovered the app is actually a multi-tenant app registered in another directory.

这就是它只出现在企业应用程序下的原因.当您在目录中启用多租户应用程序时，在那里创建了一个服务主体(企业应用程序).应用程序(所有者在其中注册)保留在其注册的原始目录中.

That's why it only showed up under Enterprise applications. When you enable a multi-tenant application in a directory, a Service Principal (Enterprise application) is created in there. The Application (where owners are registered) remains in the original directory where it was registered.

如果您是全局管理员，则可以看到该应用.

If you are a Global Admin, you can see the app.

您需要确保在应用注册"标签上选择所有应用.

You need to make sure you select All apps on the App registrations tab.

或者，您可以使用 Azure AD PowerShell cmdlet 添加所有者:https://www.powershellgallery.com/packages/AzureAD/2.0.1.3

As an alternative, you can add an owner by using Azure AD PowerShell cmdlets: https://www.powershellgallery.com/packages/AzureAD/2.0.1.3

Connect-AzureAD
Add-AzureADApplicationOwner -ObjectId 3ddd22e7-a150-4bb3-b100-e410dea1cb84 -RefObjectId c13dd34a-492b-4561-b171-40fcce2916c5

ObjectId 应该是应用程序的对象ID，可以通过Get-AzureADApplication 列出应用程序来获取.第二个参数 RefObjectId 应该是您要添加的用户的对象 ID.您应该能够从门户或使用 Get-AzureADUser 获取该信息.

ObjectId should be the object id of the application, you can get it by listing the applications with Get-AzureADApplication. The second parameter, RefObjectId should be the object id of the user you want to add. You should be able to get that from the portal, or with Get-AzureADUser.