diff --git a/src/Services/Ordering/Ordering.API/Infrastructure/AutofacModules/ApplicationModule.cs b/src/Services/Ordering/Ordering.API/Infrastructure/AutofacModules/ApplicationModule.cs
index 1e6b4c788..dbda8bc14 100644
--- a/src/Services/Ordering/Ordering.API/Infrastructure/AutofacModules/ApplicationModule.cs
+++ b/src/Services/Ordering/Ordering.API/Infrastructure/AutofacModules/ApplicationModule.cs
@@ -1,9 +1,12 @@
 using Autofac;
+using Microsoft.eShopOnContainers.BuildingBlocks.EventBus.Abstractions;
+using Microsoft.eShopOnContainers.Services.Ordering.API.Application.Commands;
 using Microsoft.eShopOnContainers.Services.Ordering.API.Application.Queries;
 using Microsoft.eShopOnContainers.Services.Ordering.Domain.AggregatesModel.BuyerAggregate;
 using Microsoft.eShopOnContainers.Services.Ordering.Domain.AggregatesModel.OrderAggregate;
 using Microsoft.eShopOnContainers.Services.Ordering.Infrastructure.Idempotency;
 using Microsoft.eShopOnContainers.Services.Ordering.Infrastructure.Repositories;
+using System.Reflection;
 
 namespace Microsoft.eShopOnContainers.Services.Ordering.API.Infrastructure.AutofacModules
 {
@@ -38,6 +41,10 @@ namespace Microsoft.eShopOnContainers.Services.Ordering.API.Infrastructure.Autof
             builder.RegisterType<RequestManager>()
                .As<IRequestManager>()
                .InstancePerLifetimeScope();
+
+            builder.RegisterAssemblyTypes(typeof(CreateOrderCommandHandler).GetTypeInfo().Assembly)
+                .AsClosedTypesOf(typeof(IIntegrationEventHandler<>));
+
         }
     }
 }
diff --git a/src/Services/Ordering/Ordering.API/Infrastructure/AutofacModules/MediatorModule.cs b/src/Services/Ordering/Ordering.API/Infrastructure/AutofacModules/MediatorModule.cs
index 86e18668b..b23f6812a 100644
--- a/src/Services/Ordering/Ordering.API/Infrastructure/AutofacModules/MediatorModule.cs
+++ b/src/Services/Ordering/Ordering.API/Infrastructure/AutofacModules/MediatorModule.cs
@@ -21,16 +21,11 @@ namespace Microsoft.eShopOnContainers.Services.Ordering.API.Infrastructure.Autof
 
             // Register all the Command classes (they implement IAsyncRequestHandler) in assembly holding the Commands
             builder.RegisterAssemblyTypes(typeof(CreateOrderCommand).GetTypeInfo().Assembly)
-                .As(o => o.GetInterfaces()
-                    .Where(i => i.IsClosedTypeOf(typeof(IAsyncRequestHandler<,>)))
-                    .Select(i => new KeyedService("IAsyncRequestHandler", i)));
+                .AsClosedTypesOf(typeof(IAsyncRequestHandler<,>));
 
             // Register all the event classes (they implement IAsyncNotificationHandler) in assembly holding the Commands
             builder.RegisterAssemblyTypes(typeof(ValidateOrAddBuyerAggregateWhenOrderStartedDomainEventHandler).GetTypeInfo().Assembly)
-                .As(o => o.GetInterfaces()
-                    .Where(i => i.IsClosedTypeOf(typeof(IAsyncNotificationHandler<>)))
-                    .Select(i => new KeyedService("IAsyncNotificationHandler", i)))
-                    .AsImplementedInterfaces();
+                .AsClosedTypesOf(typeof(IAsyncNotificationHandler<>));
 
 
             builder
diff --git a/src/Services/Ordering/Ordering.API/Ordering.API.csproj b/src/Services/Ordering/Ordering.API/Ordering.API.csproj
index 134b65030..ce6a77ca6 100644
--- a/src/Services/Ordering/Ordering.API/Ordering.API.csproj
+++ b/src/Services/Ordering/Ordering.API/Ordering.API.csproj
@@ -34,7 +34,7 @@
   <ItemGroup>
     <PackageReference Include="FluentValidation.AspNetCore" Version="7.0.3" />
     <PackageReference Include="FluentValidation.MVC6" Version="6.4.0" />
-    <PackageReference Include="MediatR.Extensions.Microsoft.DependencyInjection" Version="2.0.0" />
+    <PackageReference Include="MediatR.Extensions.Microsoft.DependencyInjection" Version="3.0.0" />
     <PackageReference Include="Autofac.Extensions.DependencyInjection" Version="4.1.0" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="2.0.0" />
     <PackageReference Include="Microsoft.AspNetCore.Server.IISIntegration" Version="2.0.0" />
diff --git a/src/Services/Ordering/Ordering.API/Startup.cs b/src/Services/Ordering/Ordering.API/Startup.cs
index 0d3f779c9..3f2bbe43b 100644
--- a/src/Services/Ordering/Ordering.API/Startup.cs
+++ b/src/Services/Ordering/Ordering.API/Startup.cs
@@ -67,11 +67,13 @@
                 options.Filters.Add(typeof(HttpGlobalExceptionFilter));
             }).AddControllersAsServices();  //Injecting Controllers themselves thru DI
                                             //For further info see: http://docs.autofac.org/en/latest/integration/aspnetcore.html#controllers-as-services
-            
+
             // Configure GracePeriodManager Hosted Service
             services.AddSingleton<IHostedService, GracePeriodManagerService>();
             services.Configure<GracePeriodManagerSettings>(Configuration);
 
+            services.AddTransient<IOrderingIntegrationEventService, OrderingIntegrationEventService>();
+
             services.AddHealthChecks(checks =>
             {
                 var minutes = 1;