diff --git a/src/System Application/App/Extension Management/src/ExtensionInstallation.Page.al b/src/System Application/App/Extension Management/src/ExtensionInstallation.Page.al
index 3586fb0641f..94f223f8cbc 100644
--- a/src/System Application/App/Extension Management/src/ExtensionInstallation.Page.al	
+++ b/src/System Application/App/Extension Management/src/ExtensionInstallation.Page.al	
@@ -13,6 +13,9 @@ using System;
 page 2503 "Extension Installation"
 {
     Extensible = false;
+    ObsoleteReason = 'Use the Business Central admin center to install and manage extensions.';
+    ObsoleteState = Pending;
+    ObsoleteTag = '29.0';
     PageType = Card;
     SourceTable = "Extension Installation";
     SourceTableTemporary = true;
@@ -80,4 +83,3 @@ page 2503 "Extension Installation"
     end;
 }
 
-
diff --git a/src/System Application/App/Extension Management/src/ExtensionManagement.Page.al b/src/System Application/App/Extension Management/src/ExtensionManagement.Page.al
index a4f906fc23e..a7fdbc63da1 100644
--- a/src/System Application/App/Extension Management/src/ExtensionManagement.Page.al	
+++ b/src/System Application/App/Extension Management/src/ExtensionManagement.Page.al	
@@ -16,6 +16,9 @@ using System.Integration;
 page 2500 "Extension Management"
 {
     Caption = 'Extension Management';
+    ObsoleteReason = 'Use the Business Central admin center to upload and manage per-tenant extensions.';
+    ObsoleteState = Pending;
+    ObsoleteTag = '29.0';
     AdditionalSearchTerms = 'app,add-in,customize,plug-in,appsource';
     ApplicationArea = All;
     DeleteAllowed = false;
@@ -382,9 +385,21 @@ page 2500 "Extension Management"
         ActionsEnabled := false;
 
         HelpActionVisible := false;
+        ShowExtensionManagementDeprecationNotification();
         ShowUninstalledExtensionsNotification();
     end;
 
+    local procedure ShowExtensionManagementDeprecationNotification()
+    var
+        DeprecationNotification: Notification;
+    begin
+        DeprecationNotification.Id := ExtensionManagementDeprecationNotificationIdTok;
+        DeprecationNotification.Scope := NotificationScope::LocalScope;
+        DeprecationNotification.Message(ExtensionManagementDeprecationMsg);
+        DeprecationNotification.AddAction(ReadMoreHereLbl, Codeunit::"Extension Operation Impl", 'OpenAdminCenterExtensionManagementDocumentation');
+        DeprecationNotification.Send();
+    end;
+
     local procedure ShowUninstalledExtensionsNotification()
     var
         ExtensionDatabaseSnapshot: Record "Extension Database Snapshot";
@@ -429,6 +444,9 @@ page 2500 "Extension Management"
         ShowOrphanedDataLbl: Label 'Show Data';
         MarkAllAsReviewedLbl: Label 'Mark All as Reviewed';
         OrphanedDataNotificationIdTok: Label 'b1c5a678-2e3f-4d91-a6b0-9f8e7d6c5b4a', Locked = true;
+        ExtensionManagementDeprecationMsg: Label 'Extension management is moving to the Business Central admin center. Use the admin center to upload and manage per-tenant extensions. This page will become unavailable in a future release.';
+        ReadMoreHereLbl: Label 'Read more here';
+        ExtensionManagementDeprecationNotificationIdTok: Label '3be91c11-8195-4c65-be23-20fddbea9bb7', Locked = true;
 
     protected procedure IsSaasEnvironment(): boolean
     begin
diff --git a/src/System Application/App/Extension Management/src/ExtensionOperationImpl.Codeunit.al b/src/System Application/App/Extension Management/src/ExtensionOperationImpl.Codeunit.al
index 544226269a6..a76c7db91de 100644
--- a/src/System Application/App/Extension Management/src/ExtensionOperationImpl.Codeunit.al	
+++ b/src/System Application/App/Extension Management/src/ExtensionOperationImpl.Codeunit.al	
@@ -37,6 +37,7 @@ codeunit 2503 "Extension Operation Impl"
         InstallationFailedOpenDetailsTxt: Label 'App installation failed. User has chosen to see the details.';
         InstallationFailedDoNotOpenDetailsTxt: Label 'App installation failed. User has chosen not to check out the details.';
         PageCaptionTok: Label '%1 %2', Comment = '%1 = Page default caption %2 = App name';
+        AdminCenterExtensionManagementUrlLbl: Label 'https://go.microsoft.com/fwlink/?LinkId=2374621', Locked = true;
 
     local procedure AssertIsInitialized()
     begin
@@ -149,6 +150,11 @@ codeunit 2503 "Extension Operation Impl"
         exit(true);
     end;
 
+    procedure OpenAdminCenterExtensionManagementDocumentation(Notification: Notification)
+    begin
+        Hyperlink(AdminCenterExtensionManagementUrlLbl);
+    end;
+
     procedure UnpublishUninstalledPerTenantExtension(PackageID: Guid)
     begin
         CheckPermissions();
diff --git a/src/System Application/App/Extension Management/src/UploadAndDeployExtension.Page.al b/src/System Application/App/Extension Management/src/UploadAndDeployExtension.Page.al
index 032a9087293..2720cfa9cca 100644
--- a/src/System Application/App/Extension Management/src/UploadAndDeployExtension.Page.al	
+++ b/src/System Application/App/Extension Management/src/UploadAndDeployExtension.Page.al	
@@ -13,6 +13,9 @@ using System.Globalization;
 page 2507 "Upload And Deploy Extension"
 {
     Extensible = false;
+    ObsoleteReason = 'Use the Business Central admin center to upload and manage per-tenant extensions.';
+    ObsoleteState = Pending;
+    ObsoleteTag = '29.0';
     PageType = NavigatePage;
     SourceTable = "Published Application";
     SourceTableTemporary = true;
@@ -183,4 +186,3 @@ page 2507 "Upload And Deploy Extension"
         DisclaimerLbl: Label 'Per-Tenant Extension (PTE) Disclaimer';
         IsAccepted: Boolean;
 }
-