diff --git a/src/InformaticsGateway/Test/Services/Common/InputDataPluginEngineFactoryTest.cs b/src/InformaticsGateway/Test/Services/Common/InputDataPluginEngineFactoryTest.cs
index eba200ab0..ad2fced05 100644
--- a/src/InformaticsGateway/Test/Services/Common/InputDataPluginEngineFactoryTest.cs
+++ b/src/InformaticsGateway/Test/Services/Common/InputDataPluginEngineFactoryTest.cs
@@ -20,6 +20,7 @@
 using Microsoft.Extensions.Logging;
 using Monai.Deploy.InformaticsGateway.Api;
 using Monai.Deploy.InformaticsGateway.Common;
+using Monai.Deploy.InformaticsGateway.ExecutionPlugins;
 using Monai.Deploy.InformaticsGateway.Services.Common;
 using Monai.Deploy.InformaticsGateway.SharedTest;
 using Monai.Deploy.InformaticsGateway.Test.Plugins;
@@ -52,12 +53,14 @@ public void RegisteredPlugins_WhenCalled_ReturnsListOfPlugins()
                 p => VerifyPlugin(p, typeof(TestInputDataPluginAddWorkflow)),
                 p => VerifyPlugin(p, typeof(TestInputDataPluginResumeWorkflow)),
                 p => VerifyPlugin(p, typeof(TestInputDataPluginModifyDicomFile)),
-                p => VerifyPlugin(p, typeof(TestInputDataPluginVirtualAE)));
+                p => VerifyPlugin(p, typeof(TestInputDataPluginVirtualAE)),
+                p => VerifyPlugin(p, typeof(ExternalAppIncoming)));
 
             _logger.VerifyLogging($"{typeof(IInputDataPlugin).Name} data plug-in found {typeof(TestInputDataPluginAddWorkflow).Name}: {typeof(TestInputDataPluginAddWorkflow).GetShortTypeAssemblyName()}.", LogLevel.Information, Times.Once());
             _logger.VerifyLogging($"{typeof(IInputDataPlugin).Name} data plug-in found {typeof(TestInputDataPluginResumeWorkflow).Name}: {typeof(TestInputDataPluginResumeWorkflow).GetShortTypeAssemblyName()}.", LogLevel.Information, Times.Once());
             _logger.VerifyLogging($"{typeof(IInputDataPlugin).Name} data plug-in found {typeof(TestInputDataPluginModifyDicomFile).Name}: {typeof(TestInputDataPluginModifyDicomFile).GetShortTypeAssemblyName()}.", LogLevel.Information, Times.Once());
             _logger.VerifyLogging($"{typeof(IInputDataPlugin).Name} data plug-in found {typeof(TestInputDataPluginVirtualAE).Name}: {typeof(TestInputDataPluginVirtualAE).GetShortTypeAssemblyName()}.", LogLevel.Information, Times.Once());
+            _logger.VerifyLogging($"{typeof(IInputDataPlugin).Name} data plug-in found {typeof(ExternalAppIncoming).Name}: {typeof(ExternalAppIncoming).GetShortTypeAssemblyName()}.", LogLevel.Information, Times.Once());
         }
 
         private void VerifyPlugin(KeyValuePair<string, string> values, Type type)
diff --git a/src/InformaticsGateway/Test/Services/Common/OutputDataPluginEngineFactoryTest.cs b/src/InformaticsGateway/Test/Services/Common/OutputDataPluginEngineFactoryTest.cs
index 10073297a..caa3f38a9 100644
--- a/src/InformaticsGateway/Test/Services/Common/OutputDataPluginEngineFactoryTest.cs
+++ b/src/InformaticsGateway/Test/Services/Common/OutputDataPluginEngineFactoryTest.cs
@@ -20,6 +20,7 @@
 using Microsoft.Extensions.Logging;
 using Monai.Deploy.InformaticsGateway.Api;
 using Monai.Deploy.InformaticsGateway.Common;
+using Monai.Deploy.InformaticsGateway.ExecutionPlugins;
 using Monai.Deploy.InformaticsGateway.Services.Common;
 using Monai.Deploy.InformaticsGateway.SharedTest;
 using Monai.Deploy.InformaticsGateway.Test.Plugins;
@@ -50,10 +51,13 @@ public void RegisteredPlugins_WhenCalled_ReturnsListOfPlugins()
 
             Assert.Collection(result,
                 p => VerifyPlugin(p, typeof(TestOutputDataPluginAddMessage)),
-                p => VerifyPlugin(p, typeof(TestOutputDataPluginModifyDicomFile)));
+                p => VerifyPlugin(p, typeof(TestOutputDataPluginModifyDicomFile)),
+                p => VerifyPlugin(p, typeof(ExternalAppOutgoing))
+                );
 
             _logger.VerifyLogging($"{typeof(IOutputDataPlugin).Name} data plug-in found {typeof(TestOutputDataPluginAddMessage).Name}: {typeof(TestOutputDataPluginAddMessage).GetShortTypeAssemblyName()}.", LogLevel.Information, Times.Once());
             _logger.VerifyLogging($"{typeof(IOutputDataPlugin).Name} data plug-in found {typeof(TestOutputDataPluginModifyDicomFile).Name}: {typeof(TestOutputDataPluginModifyDicomFile).GetShortTypeAssemblyName()}.", LogLevel.Information, Times.Once());
+            _logger.VerifyLogging($"{typeof(IOutputDataPlugin).Name} data plug-in found {typeof(ExternalAppOutgoing).Name}: {typeof(ExternalAppOutgoing).GetShortTypeAssemblyName()}.", LogLevel.Information, Times.Once());
         }
 
         private void VerifyPlugin(KeyValuePair<string, string> values, Type type)