diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Extensions/WechatApiClientExecuteWxaBusinessExtensions.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Extensions/WechatApiClientExecuteWxaBusinessExtensions.cs
index c7b52c10..82d4a01e 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Api/Extensions/WechatApiClientExecuteWxaBusinessExtensions.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Extensions/WechatApiClientExecuteWxaBusinessExtensions.cs
@@ -9,29 +9,6 @@ namespace SKIT.FlurlHttpClient.Wechat.Api
 {
     public static class WechatApiClientExecuteWxaBusinessExtensions
     {
-        /// <summary>
-        /// <para>异步调用 [POST] /wxa/business/getpayfororder 接口。</para>
-        /// <para>REF: https://developers.weixin.qq.com/minigame/dev/api-backend/midas-payment/business.getPayForOrder.html </para>
-        /// </summary>
-        /// <param name="client"></param>
-        /// <param name="request"></param>
-        /// <param name="cancellationToken"></param>
-        /// <returns></returns>
-        public static async Task<Models.WxaBusinessGetPayForOrderResponse> ExecuteWxaBusinessGetPayForOrderAsync(this WechatApiClient client, Models.WxaBusinessGetPayForOrderRequest request, CancellationToken cancellationToken = default)
-        {
-            if (client is null) throw new ArgumentNullException(nameof(client));
-            if (request is null) throw new ArgumentNullException(nameof(request));
-
-            if (request.AppId == null)
-                request.AppId = client.Credentials.AppId;
-
-            IFlurlRequest flurlReq = client
-                .CreateRequest(request, HttpMethod.Post, "wxa", "business", "getpayfororder")
-                .SetQueryParam("access_token", request.AccessToken);
-
-            return await client.SendRequestWithJsonAsync<Models.WxaBusinessGetPayForOrderResponse>(flurlReq, data: request, cancellationToken: cancellationToken);
-        }
-
         /// <summary>
         /// <para>异步调用 [POST] /wxa/business/checkencryptedmsg 接口。</para>
         /// <para>REF: https://developers.weixin.qq.com/miniprogram/dev/api-backend/open-api/user-info/auth.checkEncryptedData.html </para>
@@ -74,6 +51,31 @@ namespace SKIT.FlurlHttpClient.Wechat.Api
             return await client.SendRequestWithJsonAsync<Models.WxaBusinessGetUserPhoneNumberResponse>(flurlReq, data: request, cancellationToken: cancellationToken);
         }
 
+        #region Midas
+        /// <summary>
+        /// <para>异步调用 [POST] /wxa/business/getpayfororder 接口。</para>
+        /// <para>REF: https://developers.weixin.qq.com/minigame/dev/api-backend/midas-payment/business.getPayForOrder.html </para>
+        /// </summary>
+        /// <param name="client"></param>
+        /// <param name="request"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        public static async Task<Models.WxaBusinessGetPayForOrderResponse> ExecuteWxaBusinessGetPayForOrderAsync(this WechatApiClient client, Models.WxaBusinessGetPayForOrderRequest request, CancellationToken cancellationToken = default)
+        {
+            if (client is null) throw new ArgumentNullException(nameof(client));
+            if (request is null) throw new ArgumentNullException(nameof(request));
+
+            if (request.AppId == null)
+                request.AppId = client.Credentials.AppId;
+
+            IFlurlRequest flurlReq = client
+                .CreateRequest(request, HttpMethod.Post, "wxa", "business", "getpayfororder")
+                .SetQueryParam("access_token", request.AccessToken);
+
+            return await client.SendRequestWithJsonAsync<Models.WxaBusinessGetPayForOrderResponse>(flurlReq, data: request, cancellationToken: cancellationToken);
+        }
+        #endregion
+
         #region GameMatch
         /// <summary>
         /// <para>异步调用 [POST] /wxa/business/gamematch/creatematchrule 接口。</para>
@@ -326,5 +328,67 @@ namespace SKIT.FlurlHttpClient.Wechat.Api
             return await client.SendRequestWithJsonAsync<Models.WxaBusinessGetUserEncryptKeyResponse>(flurlReq, data: request, cancellationToken: cancellationToken);
         }
         #endregion
+
+        #region B2BStore
+        /// <summary>
+        /// <para>异步调用 [POST] /wxa/business/getretailinfo 接口。</para>
+        /// <para>REF: https://developers.weixin.qq.com/miniprogram/dev/platform-capabilities/industry/B2b_store_assistant.html </para>
+        /// </summary>
+        /// <param name="client"></param>
+        /// <param name="request"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        public static async Task<Models.WxaBusinessGetRetailInfoResponse> ExecuteWxaBusinessGetRetailInfoAsync(this WechatApiClient client, Models.WxaBusinessGetRetailInfoRequest request, CancellationToken cancellationToken = default)
+        {
+            if (client is null) throw new ArgumentNullException(nameof(client));
+            if (request is null) throw new ArgumentNullException(nameof(request));
+
+            IFlurlRequest flurlReq = client
+                .CreateRequest(request, HttpMethod.Post, "wxa", "business", "getretailinfo")
+                .SetQueryParam("access_token", request.AccessToken);
+
+            return await client.SendRequestWithJsonAsync<Models.WxaBusinessGetRetailInfoResponse>(flurlReq, data: request, cancellationToken: cancellationToken);
+        }
+
+        /// <summary>
+        /// <para>异步调用 [POST] /wxa/business/batchcreateretail 接口。</para>
+        /// <para>REF: https://developers.weixin.qq.com/miniprogram/dev/platform-capabilities/industry/B2b_store_assistant.html </para>
+        /// </summary>
+        /// <param name="client"></param>
+        /// <param name="request"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        public static async Task<Models.WxaBusinessBatchCreateRetailResponse> ExecuteWxaBusinessBatchCreateRetailAsync(this WechatApiClient client, Models.WxaBusinessBatchCreateRetailRequest request, CancellationToken cancellationToken = default)
+        {
+            if (client is null) throw new ArgumentNullException(nameof(client));
+            if (request is null) throw new ArgumentNullException(nameof(request));
+
+            IFlurlRequest flurlReq = client
+                .CreateRequest(request, HttpMethod.Post, "wxa", "business", "batchcreateretail")
+                .SetQueryParam("access_token", request.AccessToken);
+
+            return await client.SendRequestWithJsonAsync<Models.WxaBusinessBatchCreateRetailResponse>(flurlReq, data: request, cancellationToken: cancellationToken);
+        }
+
+        /// <summary>
+        /// <para>异步调用 [POST] /wxa/business/retailnotifybusiness 接口。</para>
+        /// <para>REF: https://developers.weixin.qq.com/miniprogram/dev/platform-capabilities/industry/B2b_store_assistant.html </para>
+        /// </summary>
+        /// <param name="client"></param>
+        /// <param name="request"></param>
+        /// <param name="cancellationToken"></param>
+        /// <returns></returns>
+        public static async Task<Models.WxaBusinessRetailNotifyBusinessResponse> ExecuteWxaBusinessRetailNotifyBusinessAsync(this WechatApiClient client, Models.WxaBusinessRetailNotifyBusinessRequest request, CancellationToken cancellationToken = default)
+        {
+            if (client is null) throw new ArgumentNullException(nameof(client));
+            if (request is null) throw new ArgumentNullException(nameof(request));
+
+            IFlurlRequest flurlReq = client
+                .CreateRequest(request, HttpMethod.Post, "wxa", "business", "retailnotifybusiness")
+                .SetQueryParam("access_token", request.AccessToken);
+
+            return await client.SendRequestWithJsonAsync<Models.WxaBusinessRetailNotifyBusinessResponse>(flurlReq, data: request, cancellationToken: cancellationToken);
+        }
+        #endregion
     }
 }
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/B2BStore/WxaBusinessBatchCreateRetailRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/B2BStore/WxaBusinessBatchCreateRetailRequest.cs
new file mode 100644
index 00000000..09c8f828
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/B2BStore/WxaBusinessBatchCreateRetailRequest.cs
@@ -0,0 +1,100 @@
+using System.Collections.Generic;
+
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /wxa/business/batchcreateretail 接口的请求。</para>
+    /// </summary>
+    public class WxaBusinessBatchCreateRetailRequest : WechatApiRequest, IInferable<WxaBusinessBatchCreateRetailRequest, WxaBusinessBatchCreateRetailResponse>
+    {
+        public static class Types
+        {
+            public class RetailInfo
+            {
+                /// <summary>
+                /// 获取或设置一级类型。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("retail_type")]
+                [System.Text.Json.Serialization.JsonPropertyName("retail_type")]
+                public string RetailType { get; set; } = string.Empty;
+
+                /// <summary>
+                /// 获取或设置二级类型。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("sub_retail_type")]
+                [System.Text.Json.Serialization.JsonPropertyName("sub_retail_type")]
+                public string? RetailSubType { get; set; }
+
+                /// <summary>
+                /// 获取或设置门店名称。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("retail_name")]
+                [System.Text.Json.Serialization.JsonPropertyName("retail_name")]
+                public string Name { get; set; } = string.Empty;
+
+                /// <summary>
+                /// 获取或设置门店地址省份。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("address_province")]
+                [System.Text.Json.Serialization.JsonPropertyName("address_province")]
+                public string Province { get; set; } = string.Empty;
+
+                /// <summary>
+                /// 获取或设置门店地址城市。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("address_city")]
+                [System.Text.Json.Serialization.JsonPropertyName("address_city")]
+                public string City { get; set; } = string.Empty;
+
+                /// <summary>
+                /// 获取或设置门店地址区县。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("address_region")]
+                [System.Text.Json.Serialization.JsonPropertyName("address_region")]
+                public string District { get; set; } = string.Empty;
+
+                /// <summary>
+                /// 获取或设置门店地址街道。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("address_street")]
+                [System.Text.Json.Serialization.JsonPropertyName("address_street")]
+                public string Street { get; set; } = string.Empty;
+
+                /// <summary>
+                /// 获取或设置门店负责人的手机号。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("mobile_phone")]
+                [System.Text.Json.Serialization.JsonPropertyName("mobile_phone")]
+                public string Mobilephone { get; set; } = default!;
+
+                /// <summary>
+                /// 获取或设置企业名称。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("biz_name")]
+                [System.Text.Json.Serialization.JsonPropertyName("biz_name")]
+                public string? BusinessName { get; set; }
+
+                /// <summary>
+                /// 获取或设置营业执照注册号。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("registration_number")]
+                [System.Text.Json.Serialization.JsonPropertyName("registration_number")]
+                public string? RegistrationNumber { get; set; }
+
+                /// <summary>
+                /// 获取或设置法人姓名。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("corporation_name")]
+                [System.Text.Json.Serialization.JsonPropertyName("corporation_name")]
+                public string? LegalPerson { get; set; }
+            }
+        }
+
+        /// <summary>
+        /// 获取或设置门店信息列表。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("retail_info_list")]
+        [System.Text.Json.Serialization.JsonPropertyName("retail_info_list")]
+        public IList<Types.RetailInfo> RetailInfoList { get; set; } = new List<Types.RetailInfo>();
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/B2BStore/WxaBusinessBatchCreateRetailResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/B2BStore/WxaBusinessBatchCreateRetailResponse.cs
new file mode 100644
index 00000000..2e253c53
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/B2BStore/WxaBusinessBatchCreateRetailResponse.cs
@@ -0,0 +1,56 @@
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /wxa/business/batchcreateretail 接口的响应。</para>
+    /// </summary>
+    public class WxaBusinessBatchCreateRetailResponse : WechatApiResponse
+    {
+        public static class Types
+        {
+            public class Failure
+            {
+                /// <summary>
+                /// 获取或设置门店负责人的手机号。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("mobile_phone")]
+                [System.Text.Json.Serialization.JsonPropertyName("mobile_phone")]
+                public string Mobilephone { get; set; } = default!;
+
+                /// <summary>
+                /// 获取或设置营业执照注册号。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("registration_number")]
+                [System.Text.Json.Serialization.JsonPropertyName("registration_number")]
+                public string? RegistrationNumber { get; set; }
+
+                /// <summary>
+                /// 获取或设置失败原因编号。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("failure_code")]
+                [System.Text.Json.Serialization.JsonPropertyName("failure_code")]
+                public int FailureCode { get; set; }
+            }
+        }
+
+        /// <summary>
+        /// 获取或设置成功数量。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("num_success")]
+        [System.Text.Json.Serialization.JsonPropertyName("num_success")]
+        public int SuccessfulCount { get; set; }
+
+        /// <summary>
+        /// 获取或设置失败数量。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("num_failure")]
+        [System.Text.Json.Serialization.JsonPropertyName("num_failure")]
+        public int FailedCount { get; set; }
+
+        /// <summary>
+        /// 获取或设置失败信息列表。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("failure_record_list")]
+        [System.Text.Json.Serialization.JsonPropertyName("failure_record_list")]
+        public Types.Failure[]? FailureList { get; set; }
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/B2BStore/WxaBusinessGetRetailInfoRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/B2BStore/WxaBusinessGetRetailInfoRequest.cs
new file mode 100644
index 00000000..846bd347
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/B2BStore/WxaBusinessGetRetailInfoRequest.cs
@@ -0,0 +1,22 @@
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /wxa/business/getretailinfo 接口的请求。</para>
+    /// </summary>
+    public class WxaBusinessGetRetailInfoRequest : WechatApiRequest, IInferable<WxaBusinessGetRetailInfoRequest, WxaBusinessGetRetailInfoResponse>
+    {
+        /// <summary>
+        /// 获取或设置门店负责人的 OpenId。与字段 <see cref="Mobilephone"/> 二选一。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("openid")]
+        [System.Text.Json.Serialization.JsonPropertyName("openid")]
+        public string? OpenId { get; set; }
+
+        /// <summary>
+        /// 获取或设置门店负责人的手机号。与字段 <see cref="OpenId"/> 二选一。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("mobile_phone")]
+        [System.Text.Json.Serialization.JsonPropertyName("mobile_phone")]
+        public string? Mobilephone { get; set; }
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/B2BStore/WxaBusinessGetRetailInfoResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/B2BStore/WxaBusinessGetRetailInfoResponse.cs
new file mode 100644
index 00000000..849a18dd
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/B2BStore/WxaBusinessGetRetailInfoResponse.cs
@@ -0,0 +1,112 @@
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /wxa/business/getretailinfo 接口的响应。</para>
+    /// </summary>
+    public class WxaBusinessGetRetailInfoResponse : WechatApiResponse
+    {
+        public static class Types
+        {
+            public class RetailInfo
+            {
+                /// <summary>
+                /// 获取或设置一级类型。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("retail_type")]
+                [System.Text.Json.Serialization.JsonPropertyName("retail_type")]
+                public string RetailType { get; set; } = default!;
+
+                /// <summary>
+                /// 获取或设置二级类型。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("sub_retail_type")]
+                [System.Text.Json.Serialization.JsonPropertyName("sub_retail_type")]
+                public string RetailSubType { get; set; } = default!;
+
+                /// <summary>
+                /// 获取或设置门店名称。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("retail_name")]
+                [System.Text.Json.Serialization.JsonPropertyName("retail_name")]
+                public string Name { get; set; } = default!;
+
+                /// <summary>
+                /// 获取或设置门店地址。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("retail_address")]
+                [System.Text.Json.Serialization.JsonPropertyName("retail_address")]
+                public string Address { get; set; } = default!;
+
+                /// <summary>
+                /// 获取或设置门店负责人的 OpenId。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("openid")]
+                [System.Text.Json.Serialization.JsonPropertyName("openid")]
+                public string OpenId { get; set; } = default!;
+
+                /// <summary>
+                /// 获取或设置门店负责人的手机号。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("mobile_phone")]
+                [System.Text.Json.Serialization.JsonPropertyName("mobile_phone")]
+                public string Mobilephone { get; set; } = default!;
+
+                /// <summary>
+                /// 获取或设置企业名称。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("principal")]
+                [System.Text.Json.Serialization.JsonPropertyName("principal")]
+                public string? BusinessName { get; set; }
+
+                /// <summary>
+                /// 获取或设置营业执照注册号。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("identification")]
+                [System.Text.Json.Serialization.JsonPropertyName("identification")]
+                public string? RegistrationNumber { get; set; }
+
+                /// <summary>
+                /// 获取或设置法人姓名。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("legal_person_name")]
+                [System.Text.Json.Serialization.JsonPropertyName("legal_person_name")]
+                public string? LegalPerson { get; set; }
+
+                /// <summary>
+                /// 获取或设置认证方式。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("auth_mode")]
+                [System.Text.Json.Serialization.JsonPropertyName("auth_mode")]
+                public int AuthMode { get; set; }
+
+                /// <summary>
+                /// 获取或设置认证状态。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("status")]
+                [System.Text.Json.Serialization.JsonPropertyName("status")]
+                public int Status { get; set; }
+
+                /// <summary>
+                /// 获取或设置认证时间戳。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("auth_time")]
+                [System.Text.Json.Serialization.JsonPropertyName("auth_time")]
+                public long? AuthTimestamp { get; set; }
+
+                /// <summary>
+                /// 获取或设置授权时间戳。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("grant_time")]
+                [System.Text.Json.Serialization.JsonPropertyName("grant_time")]
+                public long? GrantTimestamp { get; set; }
+            }
+        }
+
+        /// <summary>
+        /// 获取或设置门店信息列表。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("info")]
+        [System.Text.Json.Serialization.JsonPropertyName("info")]
+        public Types.RetailInfo[] RetailInfoList { get; set; } = default!;
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/B2BStore/WxaBusinessRetailNotifyBusinessRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/B2BStore/WxaBusinessRetailNotifyBusinessRequest.cs
new file mode 100644
index 00000000..75ac2727
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/B2BStore/WxaBusinessRetailNotifyBusinessRequest.cs
@@ -0,0 +1,31 @@
+using System.Collections.Generic;
+
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /wxa/business/retailnotifybusiness 接口的请求。</para>
+    /// </summary>
+    public class WxaBusinessRetailNotifyBusinessRequest : WechatApiRequest, IInferable<WxaBusinessRetailNotifyBusinessRequest, WxaBusinessRetailNotifyBusinessResponse>
+    {
+        /// <summary>
+        /// 获取或设置消息类型。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("type")]
+        [System.Text.Json.Serialization.JsonPropertyName("type")]
+        public int Type { get; set; }
+
+        /// <summary>
+        /// 获取或设置下发内容。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("content")]
+        [System.Text.Json.Serialization.JsonPropertyName("content")]
+        public string Content { get; set; } = string.Empty;
+
+        /// <summary>
+        /// 获取或设置门店负责人的 OpenId 列表。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("to_user_list")]
+        [System.Text.Json.Serialization.JsonPropertyName("to_user_list")]
+        public IList<string> ToUserOpenIdList { get; set; } = new List<string>();
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/B2BStore/WxaBusinessRetailNotifyBusinessResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/B2BStore/WxaBusinessRetailNotifyBusinessResponse.cs
new file mode 100644
index 00000000..87687e75
--- /dev/null
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/B2BStore/WxaBusinessRetailNotifyBusinessResponse.cs
@@ -0,0 +1,9 @@
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+{
+    /// <summary>
+    /// <para>表示 [POST] /wxa/business/retailnotifybusiness 接口的响应。</para>
+    /// </summary>
+    public class WxaBusinessRetailNotifyBusinessResponse : WechatApiResponse
+    {
+    }
+}
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/WxaBusinessGetPayForOrderRequest.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/Midas/WxaBusinessGetPayForOrderRequest.cs
similarity index 100%
rename from src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/WxaBusinessGetPayForOrderRequest.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/Midas/WxaBusinessGetPayForOrderRequest.cs
diff --git a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/WxaBusinessGetPayForOrderResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/Midas/WxaBusinessGetPayForOrderResponse.cs
similarity index 96%
rename from src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/WxaBusinessGetPayForOrderResponse.cs
rename to src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/Midas/WxaBusinessGetPayForOrderResponse.cs
index 58340a26..dbf5af3d 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/WxaBusinessGetPayForOrderResponse.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.Api/Models/WxaBusiness/Midas/WxaBusinessGetPayForOrderResponse.cs
@@ -1,4 +1,4 @@
-namespace SKIT.FlurlHttpClient.Wechat.Api.Models
+namespace SKIT.FlurlHttpClient.Wechat.Api.Models
 {
     /// <summary>
     /// <para>表示 [POST] /wxa/business/getpayfororder 接口的响应。</para>
@@ -56,7 +56,7 @@
                 /// </summary>
                 [Newtonsoft.Json.JsonProperty("env")]
                 [System.Text.Json.Serialization.JsonPropertyName("env")]
-                public string MidasEnv { get; set; } = default!;
+                public int MidasEnvironment { get; set; }
 
                 /// <summary>
                 /// 获取或设置支付时间戳。
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/WxaBusiness/B2BStore/WxaBusinessBatchCreateRetailRequest.json b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/WxaBusiness/B2BStore/WxaBusinessBatchCreateRetailRequest.json
new file mode 100644
index 00000000..5ca2f26e
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/WxaBusiness/B2BStore/WxaBusinessBatchCreateRetailRequest.json
@@ -0,0 +1,24 @@
+{
+    "retail_info_list": [
+        {
+            "mobile_phone": "12345678910",
+            "retail_name": "张三烧烤店",
+            "retail_type": "餐饮店",
+            "address_province": "广东省",
+            "address_city": "广州市",
+            "address_region": "海珠区",
+            "address_street": "新港中路397号TIT创意园"
+        },
+        {
+            "mobile_phone": "a123456789",
+            "retail_type": "便利店",
+            "address_province": "广东省",
+            "address_city": "广州市",
+            "address_region": "海珠区",
+            "address_street": "新港中路397号TIT创意园",
+            "registration_number": "xxxxx",
+            "biz_name": "xxxxx",
+            "corporation_name": "xxxxx"
+        }
+    ]
+}
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/WxaBusiness/B2BStore/WxaBusinessBatchCreateRetailResponse.json b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/WxaBusiness/B2BStore/WxaBusinessBatchCreateRetailResponse.json
new file mode 100644
index 00000000..0bfabf7d
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/WxaBusiness/B2BStore/WxaBusinessBatchCreateRetailResponse.json
@@ -0,0 +1,13 @@
+{
+    "errcode": 0,
+    "errmsg": "ok",
+    "num_success": 1,
+    "num_failure": 1,
+    "failure_record_list": [
+        {
+            "mobile_phone": "a123456789",
+            "registration_number": "",
+            "failure_code": 6
+        }
+    ]
+}
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/WxaBusiness/B2BStore/WxaBusinessGetRetailInfoRequest.json b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/WxaBusiness/B2BStore/WxaBusinessGetRetailInfoRequest.json
new file mode 100644
index 00000000..15fd541e
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/WxaBusiness/B2BStore/WxaBusinessGetRetailInfoRequest.json
@@ -0,0 +1,3 @@
+{
+    "openid": "xxxxx"
+}
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/WxaBusiness/B2BStore/WxaBusinessGetRetailInfoResponse.json b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/WxaBusiness/B2BStore/WxaBusinessGetRetailInfoResponse.json
new file mode 100644
index 00000000..5f5290f6
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/WxaBusiness/B2BStore/WxaBusinessGetRetailInfoResponse.json
@@ -0,0 +1,21 @@
+{
+    "errcode": 0,
+    "errmsg": "ok",
+    "info": [
+        {
+            "mobile_phone": "12345678910",
+            "retail_type": "餐饮店",
+            "sub_retail_type": "",
+            "retail_address": "广东省广州市海珠区新港中路397号TIT创意园",
+            "retail_name": "张三烧烤店",
+            "identification": "100000000000000001",
+            "principal": "广州张三烧烤店",
+            "legal_person_name": "张*",
+            "openid": "xxxxxxxxxx",
+            "status": 1,
+            "auth_mode": 1,
+            "auth_time": 1655458898,
+            "grant_time": 1655458909
+        }
+    ]
+}
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/WxaBusiness/B2BStore/WxaBusinessRetailNotifyBusinessRequest.json b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/WxaBusiness/B2BStore/WxaBusinessRetailNotifyBusinessRequest.json
new file mode 100644
index 00000000..3ef15b14
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/WxaBusiness/B2BStore/WxaBusinessRetailNotifyBusinessRequest.json
@@ -0,0 +1,7 @@
+{
+    "type": 7,
+    "content": "{}",
+    "to_user_list": [
+        "xxxxxxxxxxxxxx"
+    ]
+}
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/WxaBusiness/Midas/WxaBusinessGetPayForOrderRequest.json b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/WxaBusiness/Midas/WxaBusinessGetPayForOrderRequest.json
new file mode 100644
index 00000000..cd91544b
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/WxaBusiness/Midas/WxaBusinessGetPayForOrderRequest.json
@@ -0,0 +1,5 @@
+{
+    "appid": "",
+    "order_no": "",
+    "out_trade_no": ""
+}
diff --git a/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/WxaBusiness/Midas/WxaBusinessGetPayForOrderResponse.json b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/WxaBusiness/Midas/WxaBusinessGetPayForOrderResponse.json
new file mode 100644
index 00000000..18a7326d
--- /dev/null
+++ b/test/SKIT.FlurlHttpClient.Wechat.Api.UnitTests/ModelSamples/WxaBusiness/Midas/WxaBusinessGetPayForOrderResponse.json
@@ -0,0 +1,15 @@
+{
+    "errcode": 0,
+    "errmsg": "ok",
+    "payfororder": {
+        "out_trade_no": "",
+        "order_no": "",
+        "openid": "",
+        "create_time": 123456,
+        "amount": 0,
+        "status": 0,
+        "zone_id": "",
+        "env": 0,
+        "pay_time": null
+    }
+}