diff --git a/dev/AppLifecycle/ActivationRegistrationManager.h b/dev/AppLifecycle/ActivationRegistrationManager.h
index 04cbb3b560..374586308e 100644
--- a/dev/AppLifecycle/ActivationRegistrationManager.h
+++ b/dev/AppLifecycle/ActivationRegistrationManager.h
@@ -11,6 +11,7 @@ namespace winrt::Microsoft::Windows::AppLifecycle::implementation
     static PCWSTR c_argumentSuffix{ L":" };
     static PCWSTR c_msProtocolArgumentString{ L"ms-protocol" };
     static PCWSTR c_pushProtocolArgumentString{ L"WindowsAppRuntimePushServer" };
+    static PCWSTR c_toastProtocolArgumentString{ L"AppNotificationActivated" };
     static PCWSTR c_runKeyPath{ LR"(Software\Microsoft\Windows\CurrentVersion\Run\)" };
 
     struct ActivationRegistrationManager
diff --git a/dev/AppLifecycle/AppInstance.cpp b/dev/AppLifecycle/AppInstance.cpp
index ae6b2cf78c..303c331204 100644
--- a/dev/AppLifecycle/AppInstance.cpp
+++ b/dev/AppLifecycle/AppInstance.cpp
@@ -12,7 +12,7 @@
 #include "FileActivatedEventArgs.h"
 #include "Association.h"
 #include "ExtensionContract.h"
-#include "GetRawNotificationEventArgs.h"
+#include "GetNotificationEventArgs.h"
 
 using namespace winrt;
 using namespace winrt::Windows::Foundation;
@@ -376,10 +376,12 @@ namespace winrt::Microsoft::Windows::AppLifecycle::implementation
             // protocol, except the catch-all LaunchActivatedEventArgs case.
             if (!contractArgument.empty())
             {
-                if (contractArgument == c_pushProtocolArgumentString)
+                if (contractArgument == c_pushProtocolArgumentString || contractArgument == c_toastProtocolArgumentString)
                 {
-                    // Generate a basic encoded launch Uri for all Push activations.
-                    std::wstring tempContractData = GenerateEncodedLaunchUri(L"App", c_pushContractId);
+                    // Generate a basic encoded launch Uri for Push/Toast activations
+                    PCWSTR contractId = (contractArgument == c_pushProtocolArgumentString) ? c_pushContractId : c_toastContractId;
+                    std::wstring tempContractData = GenerateEncodedLaunchUri(L"App", contractId);
+
                     contractArgument = c_msProtocolArgumentString;
 
                     // A non-empty contractData means we have a payload.
diff --git a/dev/AppLifecycle/AppLifecycle.idl b/dev/AppLifecycle/AppLifecycle.idl
index e63734efd5..644d3a91f2 100644
--- a/dev/AppLifecycle/AppLifecycle.idl
+++ b/dev/AppLifecycle/AppLifecycle.idl
@@ -53,6 +53,7 @@ namespace Microsoft.Windows.AppLifecycle
         // Windows.ApplicationModel.Activation.ActivationKind.
 
         Push = 5000,
+        AppNotification,
     };
 
     runtimeclass AppActivationArguments
diff --git a/dev/AppLifecycle/ExtensionContract.h b/dev/AppLifecycle/ExtensionContract.h
index f4789ffab9..74c42d3b0d 100644
--- a/dev/AppLifecycle/ExtensionContract.h
+++ b/dev/AppLifecycle/ExtensionContract.h
@@ -7,7 +7,7 @@
 #include "ProtocolActivatedEventArgs.h"
 #include "FileActivatedEventArgs.h"
 #include "StartupActivatedEventArgs.h"
-#include "GetRawNotificationEventArgs.h"
+#include "GetNotificationEventArgs.h"
 
 namespace winrt::Microsoft::Windows::AppLifecycle::implementation
 {
@@ -26,6 +26,7 @@ namespace winrt::Microsoft::Windows::AppLifecycle::implementation
         { ExtendedActivationKind::Protocol, c_protocolContractId, &ProtocolActivatedEventArgs::Deserialize },
         { ExtendedActivationKind::StartupTask, c_startupTaskContractId, &StartupActivatedEventArgs::Deserialize },
         { ExtendedActivationKind::Push, c_pushContractId, &winrt::Microsoft::Windows::PushNotifications::Deserialize },
+        { ExtendedActivationKind::AppNotification, c_toastContractId, &winrt::Microsoft::Windows::PushNotifications::Deserialize },
     };
 
     inline bool IsEncodedLaunch(winrt::Windows::Foundation::Uri const& uri)
diff --git a/dev/PushNotifications/GetRawNotificationEventArgs.h b/dev/PushNotifications/GetNotificationEventArgs.h
similarity index 79%
rename from dev/PushNotifications/GetRawNotificationEventArgs.h
rename to dev/PushNotifications/GetNotificationEventArgs.h
index 2bf1bdd683..df8b44c146 100644
--- a/dev/PushNotifications/GetRawNotificationEventArgs.h
+++ b/dev/PushNotifications/GetNotificationEventArgs.h
@@ -7,6 +7,7 @@
 #include "externs.h"
 
 constexpr PCWSTR c_pushContractId = L"Windows.Push";
+constexpr PCWSTR c_toastContractId = L"Windows.Toast";
 
 namespace winrt::Microsoft::Windows::PushNotifications
 {
@@ -25,11 +26,6 @@ namespace winrt::Microsoft::Windows::PushNotifications
                 return winrt::make<winrt::Microsoft::Windows::PushNotifications::implementation::PushNotificationReceivedEventArgs>(payloadAsWstring);
             }
         }
-
-        const DWORD receiveArgsTimeoutInMSec{ 2000 };
-        THROW_HR_IF(HRESULT_FROM_WIN32(ERROR_TIMEOUT), !GetWaitHandleForArgs().wait(receiveArgsTimeoutInMSec));
-
-        // If COM static store was uninit, let it throw
-        return winrt::Windows::ApplicationModel::Core::CoreApplication::Properties().Lookup(ACTIVATED_EVENT_ARGS_KEY);
+        return GetArgsFromComStore();
     }
 }
diff --git a/dev/PushNotifications/PushNotifications.vcxitems b/dev/PushNotifications/PushNotifications.vcxitems
index 5f0fb92680..3e6d5a339d 100644
--- a/dev/PushNotifications/PushNotifications.vcxitems
+++ b/dev/PushNotifications/PushNotifications.vcxitems
@@ -26,7 +26,7 @@
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="$(MSBuildThisFileDirectory)externs.h" />
-    <ClInclude Include="$(MSBuildThisFileDirectory)GetRawNotificationEventArgs.h" />
+    <ClInclude Include="$(MSBuildThisFileDirectory)GetNotificationEventArgs.h" />
     <ClInclude Include="$(MSBuildThisFileDirectory)PushNotificationActivationInfo.h" />
     <ClInclude Include="$(MSBuildThisFileDirectory)PushNotificationBackgroundTask.h" />
     <ClInclude Include="$(MSBuildThisFileDirectory)PushNotificationChannel.h" />
diff --git a/dev/PushNotifications/externs.h b/dev/PushNotifications/externs.h
index 2217362df3..d0eb2d1b58 100644
--- a/dev/PushNotifications/externs.h
+++ b/dev/PushNotifications/externs.h
@@ -3,6 +3,7 @@
 
 #pragma once
 #include "pch.h"
+#include <winrt/Windows.ApplicationModel.Core.h>
 
 wil::unique_event& GetWaitHandleForArgs();
 
@@ -20,3 +21,12 @@ inline HRESULT GetCurrentProcessPath(wil::unique_cotaskmem_string& processName)
 {
     return wil::GetModuleFileNameExW(GetCurrentProcess(), nullptr, processName);
 };
+
+inline winrt::Windows::Foundation::IInspectable GetArgsFromComStore()
+{
+    const DWORD receiveArgsTimeoutInMSec{ 2000 };
+    THROW_HR_IF(HRESULT_FROM_WIN32(ERROR_TIMEOUT), !GetWaitHandleForArgs().wait(receiveArgsTimeoutInMSec));
+
+    // If COM static store was uninit, let it throw
+    return winrt::Windows::ApplicationModel::Core::CoreApplication::Properties().Lookup(ACTIVATED_EVENT_ARGS_KEY);
+}
diff --git a/dev/ToastNotifications/ToastActivationCallback.h b/dev/ToastNotifications/ToastActivationCallback.h
index 257394bb61..c13c7c3497 100644
--- a/dev/ToastNotifications/ToastActivationCallback.h
+++ b/dev/ToastNotifications/ToastActivationCallback.h
@@ -18,7 +18,7 @@ struct ToastActivationCallbackFactory : winrt::implements<ToastActivationCallbac
 {
     STDMETHODIMP CreateInstance(_In_opt_ IUnknown* aggregateInterface, _In_ REFIID interfaceId, _Outptr_ VOID** object) noexcept final try
     {
-        RETURN_HR_IF_NULL(CLASS_E_NOAGGREGATION, aggregateInterface);
+        RETURN_HR_IF(CLASS_E_NOAGGREGATION, aggregateInterface != nullptr);
         return winrt::make<ToastActivationCallback>().as(interfaceId, object);
     }
     CATCH_RETURN()
diff --git a/dev/ToastNotifications/ToastNotificationManager.cpp b/dev/ToastNotifications/ToastNotificationManager.cpp
index b6596a75ed..523403188f 100644
--- a/dev/ToastNotifications/ToastNotificationManager.cpp
+++ b/dev/ToastNotifications/ToastNotificationManager.cpp
@@ -74,13 +74,13 @@ namespace winrt::Microsoft::Windows::ToastNotifications::implementation
             // TODO: Remove ToastGuid reference from LRP
         }
     }
-    winrt::event_token ToastNotificationManager::ToastActivated(winrt::Windows::Foundation::EventHandler<winrt::Microsoft::Windows::ToastNotifications::ToastActivatedEventArgs> const& /* handler */)
+    winrt::event_token ToastNotificationManager::ToastActivated(winrt::Windows::Foundation::EventHandler<winrt::Microsoft::Windows::ToastNotifications::ToastActivatedEventArgs> const& handler)
     {
-        throw hresult_not_implemented();
+        return GetToastHandlers().add(handler);
     }
-    void ToastNotificationManager::ToastActivated(winrt::event_token const&/* token */)
+    void ToastNotificationManager::ToastActivated(winrt::event_token const& token)
     {
-        throw hresult_not_implemented();
+        GetToastHandlers().remove(token);
     }
     void ToastNotificationManager::ShowToast(winrt::Microsoft::Windows::ToastNotifications::ToastNotification const& /* toast */)
     {
diff --git a/dev/ToastNotifications/ToastNotificationUtility.h b/dev/ToastNotifications/ToastNotificationUtility.h
index 4e546b343e..2ca4d2f630 100644
--- a/dev/ToastNotifications/ToastNotificationUtility.h
+++ b/dev/ToastNotifications/ToastNotificationUtility.h
@@ -9,7 +9,7 @@
 const std::wstring c_appIdentifierPath{ LR"(Software\Classes\AppUserModelId\)" };
 const std::wstring c_clsIdPath{ LR"(Software\Classes\CLSID\)" };
 const std::wstring c_quote{ LR"(")" };
-const std::wstring c_toastActivatedArgument{ L" ----ToastActivated:" };
+const std::wstring c_toastActivatedArgument{ L" ----AppNotificationActivated:" };
 
 winrt::event<winrt::Windows::Foundation::EventHandler<winrt::Microsoft::Windows::ToastNotifications::ToastActivatedEventArgs>>& GetToastHandlers();
 
diff --git a/test/TestApps/ToastNotificationsTestApp/main.cpp b/test/TestApps/ToastNotificationsTestApp/main.cpp
index dcfabe0358..01c822d2c5 100644
--- a/test/TestApps/ToastNotificationsTestApp/main.cpp
+++ b/test/TestApps/ToastNotificationsTestApp/main.cpp
@@ -12,6 +12,17 @@ namespace winrt
     using namespace winrt::Microsoft::Windows::ToastNotifications;
 }
 
+bool BackgroundActivationTest() // Activating application for background test.
+{
+    return true;
+}
+
+bool UnregisterBackgroundActivationTest()
+{
+    winrt::ToastNotificationManager::Default().UnregisterActivator();
+    return true;
+}
+
 bool VerifyFailedRegisterActivatorUsingNullClsid()
 {
     try
@@ -78,12 +89,19 @@ bool VerifyFailedRegisterActivatorUsingNullAssets_Unpackaged()
 
 bool VerifyRegisterActivatorandUnRegisterActivatorUsingClsid()
 {
-    auto activationInfo = winrt::ToastActivationInfo::CreateFromActivationGuid(winrt::guid("1940DBA9-0F64-4F0D-8A4B-5D207B812E61"));
-
-    winrt::ToastNotificationManager::Default().RegisterActivator(activationInfo);
-
     winrt::ToastNotificationManager::Default().UnregisterActivator();
+    try
+    {
+        auto activationInfo = winrt::ToastActivationInfo::CreateFromActivationGuid(c_toastComServerId);
+
+        winrt::ToastNotificationManager::Default().RegisterActivator(activationInfo);
 
+        winrt::ToastNotificationManager::Default().UnregisterActivator();
+    }
+    catch (...)
+    {
+        return false;
+    }
     return true;
 }
 
@@ -104,7 +122,7 @@ bool VerifyFailedMultipleRegisterActivatorUsingSameClsid()
 {
     try
     {
-        auto activationInfo = winrt::ToastActivationInfo::CreateFromActivationGuid(winrt::guid("1940DBA9-0F64-4F0D-8A4B-5D207B812E61"));
+        auto activationInfo = winrt::ToastActivationInfo::CreateFromActivationGuid(c_toastComServerId);
 
         winrt::ToastNotificationManager::Default().RegisterActivator(activationInfo);
 
@@ -201,9 +219,12 @@ std::string unitTestNameFromLaunchArguments(const winrt::ILaunchActivatedEventAr
 std::map<std::string, bool(*)()> const& GetSwitchMapping()
 {
     static std::map<std::string, bool(*)()> switchMapping = {
+        { "BackgroundActivationTest", &BackgroundActivationTest},
+        { "UnregisterBackgroundActivationTest", &UnregisterBackgroundActivationTest},
         { "VerifyFailedRegisterActivatorUsingNullClsid", &VerifyFailedRegisterActivatorUsingNullClsid },
         { "VerifyFailedRegisterActivatorUsingNullClsid_Unpackaged", &VerifyFailedRegisterActivatorUsingNullClsid_Unpackaged},
         { "VerifyFailedRegisterActivatorUsingNullAssets", &VerifyFailedRegisterActivatorUsingNullAssets },
+        { "VerifyFailedRegisterActivatorUsingNullAssets_Unpackaged", &VerifyFailedRegisterActivatorUsingNullAssets_Unpackaged},
         { "VerifyRegisterActivatorandUnRegisterActivatorUsingClsid", &VerifyRegisterActivatorandUnRegisterActivatorUsingClsid },
         { "VerifyRegisterActivatorandUnRegisterActivatorUsingAssets_Unpackaged", &VerifyRegisterActivatorandUnRegisterActivatorUsingAssets_Unpackaged },
         { "VerifyFailedMultipleRegisterActivatorUsingSameClsid", &VerifyFailedMultipleRegisterActivatorUsingSameClsid },
@@ -237,6 +258,12 @@ int main() try
 
     ::Test::Bootstrap::SetupBootstrap();
 
+    if (Test::AppModel::IsPackagedProcess())
+    {
+        auto activationInfo = winrt::ToastActivationInfo::CreateFromActivationGuid(c_toastComServerId);
+        winrt::ToastNotificationManager::Default().RegisterActivator(activationInfo);
+    }
+
     auto args = winrt::AppInstance::GetCurrent().GetActivatedEventArgs();
     auto kind = args.Kind();
 
diff --git a/test/TestApps/ToastNotificationsTestAppPackage/Package.appxmanifest b/test/TestApps/ToastNotificationsTestAppPackage/Package.appxmanifest
index 82398d33c4..a8887425b4 100644
--- a/test/TestApps/ToastNotificationsTestAppPackage/Package.appxmanifest
+++ b/test/TestApps/ToastNotificationsTestAppPackage/Package.appxmanifest
@@ -50,7 +50,7 @@
       <com:Extension Category="windows.comServer">
         <com:ComServer>
           <com:ExeServer Executable="ToastNotificationsTestApp\ToastNotificationsTestApp.exe" DisplayName="SampleBackgroundApp" Arguments="----ToastActivated:">
-            <com:Class Id="1940DBA9-0F64-4F0D-8A4B-5D207B812E61" DisplayName="Windows App Runtime Toast" />
+            <com:Class Id="1940dba9-0f64-4f0d-8a4b-5d207b812e61" DisplayName="Windows App Runtime Toast" />
           </com:ExeServer>
         </com:ComServer>
       </com:Extension>
diff --git a/test/ToastNotificationTests/APITests.cpp b/test/ToastNotificationTests/APITests.cpp
index f1e9a9ed52..af6af609d1 100644
--- a/test/ToastNotificationTests/APITests.cpp
+++ b/test/ToastNotificationTests/APITests.cpp
@@ -1,4 +1,5 @@
 #include "pch.h"
+#include "NotificationActivationCallback.h"
 #include <TestDef.h>
 
 using namespace WEX::Common;
@@ -158,6 +159,16 @@ namespace Test::ToastNotifications
             VERIFY_ARE_EQUAL(exitCode, 0);
         }
 
+        TEST_METHOD(VerifyBackgroundActivation)
+        {
+            RunTest(L"BackgroundActivationTest", testWaitTime()); // Need to launch one time to enable background activation.
+
+            auto toastActivationCallback = winrt::create_instance<INotificationActivationCallback>(c_toastComServerId, CLSCTX_ALL);
+            VERIFY_SUCCEEDED(toastActivationCallback->Activate(L"AUMID", L"args", nullptr, 0));
+
+            RunTest(L"UnregisterBackgroundActivationTest", testWaitTime()); // Need to launch again to unregister activation
+        }
+
         TEST_METHOD(VerifyFailedRegisterActivatorUsingNullClsid)
         {
             RunTest(L"VerifyFailedRegisterActivatorUsingNullClsid", testWaitTime());
diff --git a/test/inc/TestDef.h b/test/inc/TestDef.h
index 93a41cbb2a..f472c82774 100644
--- a/test/inc/TestDef.h
+++ b/test/inc/TestDef.h
@@ -20,6 +20,7 @@ static const std::wstring c_testInstanceRedirectedPhaseEventName = L"WindowsAppR
 static const std::wstring c_testPushPhaseEventName = L"WindowsAppRuntimeTestPushPhaseEventName";
 inline const winrt::hstring c_rawNotificationPayload = L"<toast></toast>";
 inline IID c_comServerId = winrt::guid("ccd2ae3f-764f-4ae3-be45-9804761b28b2"); // Value from PushNotificationsTestAppPackage ComActivator in appxmanifest.
+inline IID c_toastComServerId = winrt::guid("1940dba9-0f64-4f0d-8a4b-5d207b812e61"); // Value from ToastNotificationsTestAppPackage ComActivator in appxmanifest.
 inline IID c_fakeComServerId = winrt::guid("00000000-0000-0000-0000-000000000001");
 
 #ifndef WIDEN2