diff --git a/windows/security/threat-protection/windows-defender-application-control/use-device-guard-signing-portal-in-microsoft-store-for-business.md b/windows/security/threat-protection/windows-defender-application-control/use-device-guard-signing-portal-in-microsoft-store-for-business.md
index 7311563492..cc73221cbc 100644
--- a/windows/security/threat-protection/windows-defender-application-control/use-device-guard-signing-portal-in-microsoft-store-for-business.md
+++ b/windows/security/threat-protection/windows-defender-application-control/use-device-guard-signing-portal-in-microsoft-store-for-business.md
@@ -26,6 +26,9 @@ ms.technology: windows-sec
 - Windows 11
 - Windows Server 2016 and above
 
+> [!IMPORTANT]
+> The existing web-based mechanism for the Device Guard Signing service v1 will be retired on June 9, 2021. Please transition to the PowerShell based version of the service [(DGSS v2)](https://docs.microsoft.com/en-us/microsoft-store/device-guard-signing-portal). More details can be found [here](https://docs.microsoft.com/en-us/windows/msix/package/signing-package-device-guard-signing) and [here](https://docs.microsoft.com/en-us/microsoft-store/device-guard-signing-portal).
+
 > [!NOTE]
 > Some capabilities of Windows Defender Application Control are only available on specific Windows versions. Learn more about the [Windows Defender Application Control feature availability](feature-availability.md).
 
@@ -47,4 +50,4 @@ Before you get started, be sure to review these best practices:
 4.  After the files are uploaded, click **Sign** to sign the code integrity policy.
 5.  Click **Download** to download the signed code integrity policy.
 
-    When you sign a code integrity policy with the Device Guard signing portal, the signing certificate is added to the policy. This means you can't modify this policy. If you need to make changes, make them to an unsigned version of the policy, and then sign the policy again.
\ No newline at end of file
+    When you sign a code integrity policy with the Device Guard signing portal, the signing certificate is added to the policy. This means you can't modify this policy. If you need to make changes, make them to an unsigned version of the policy, and then sign the policy again.