AAD群组的配额可以通过Microsoft Graph API进行管理。以下是使用Microsoft Graph API获取和更新AAD群组配额的代码示例：

获取AAD群组配额示例（C#）：

using Microsoft.Graph;
using Microsoft.Identity.Client;
using System;

class Program
{
    static async Task Main(string[] args)
    {
        // 配置应用程序身份验证
        var clientId = "YourClientId";
        var clientSecret = "YourClientSecret";
        var tenantId = "YourTenantId";

        var scopes = new string[] { "https://graph.microsoft.com/.default" };

        var app = ConfidentialClientApplicationBuilder
            .Create(clientId)
            .WithClientSecret(clientSecret)
            .WithAuthority($"https://login.microsoftonline.com/{tenantId}")
            .Build();

        // 获取访问令牌
        var authResult = await app.AcquireTokenForClient(scopes)
            .ExecuteAsync();

        // 创建GraphServiceClient实例
        var graphClient = new GraphServiceClient(new DelegateAuthenticationProvider(requestMessage =>
        {
            requestMessage.Headers.Authorization = new AuthenticationHeaderValue("Bearer", authResult.AccessToken);
            return Task.CompletedTask;
        }));

        // 获取AAD群组配额
        var groupQuota = await graphClient.Directory.GetGroupLifecyclePolicies().Request().GetAsync();

        Console.WriteLine($"AAD群组配额：{groupQuota.Value[0].GroupCreationPolicySetting.AllowedGroupTypes}");

        Console.ReadLine();
    }
}

更新AAD群组配额示例（C#）：

using Microsoft.Graph;
using Microsoft.Identity.Client;
using System;

class Program
{
    static async Task Main(string[] args)
    {
        // 配置应用程序身份验证
        var clientId = "YourClientId";
        var clientSecret = "YourClientSecret";
        var tenantId = "YourTenantId";

        var scopes = new string[] { "https://graph.microsoft.com/.default" };

        var app = ConfidentialClientApplicationBuilder
            .Create(clientId)
            .WithClientSecret(clientSecret)
            .WithAuthority($"https://login.microsoftonline.com/{tenantId}")
            .Build();

        // 获取访问令牌
        var authResult = await app.AcquireTokenForClient(scopes)
            .ExecuteAsync();

        // 创建GraphServiceClient实例
        var graphClient = new GraphServiceClient(new DelegateAuthenticationProvider(requestMessage =>
        {
            requestMessage.Headers.Authorization = new AuthenticationHeaderValue("Bearer", authResult.AccessToken);
            return Task.CompletedTask;
        }));

        // 更新AAD群组配额
        var groupQuota = await graphClient.Directory.GetGroupLifecyclePolicies().Request().GetAsync();
        groupQuota.Value[0].GroupCreationPolicySetting.AllowedGroupTypes = new string[] { "Unified" };
        await graphClient.Directory.GetGroupLifecyclePolicies().Request().UpdateAsync(groupQuota.Value[0]);

        Console.WriteLine("AAD群组配额已更新");

        Console.ReadLine();
    }
}

请注意，在使用这些代码示例之前，您需要先注册应用程序，并获得相应的客户端ID、客户端密钥和租户ID。