diff --git a/src/PepperDash.Essentials.Core/DeviceTypeInterfaces/IMobileControlMessengerWithSubscriptions.cs b/src/PepperDash.Essentials.Core/DeviceTypeInterfaces/IMobileControlMessengerWithSubscriptions.cs
index 887f1789..8603d5b6 100644
--- a/src/PepperDash.Essentials.Core/DeviceTypeInterfaces/IMobileControlMessengerWithSubscriptions.cs
+++ b/src/PepperDash.Essentials.Core/DeviceTypeInterfaces/IMobileControlMessengerWithSubscriptions.cs
@@ -1,10 +1,12 @@
+using System;
 using PepperDash.Core;
 
 namespace PepperDash.Essentials.Core.DeviceTypeInterfaces
 {
   /// <summary>
-  /// Defines the contract for IMobileControlMessenger
+  /// Obsolete: messengers are subscription based by default; use IMobileControlMessenger instead.
   /// </summary>
+  [Obsolete("This interface is obsolete and will be removed in a future version. All messengers are now subscription based.")]
   public interface IMobileControlMessengerWithSubscriptions : IMobileControlMessenger
   {
     /// <summary>
diff --git a/src/PepperDash.Essentials.MobileControl/MobileControlConfig.cs b/src/PepperDash.Essentials.MobileControl/MobileControlConfig.cs
index ec7219a3..963e7fd5 100644
--- a/src/PepperDash.Essentials.MobileControl/MobileControlConfig.cs
+++ b/src/PepperDash.Essentials.MobileControl/MobileControlConfig.cs
@@ -1,4 +1,5 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Converters;
 
@@ -40,9 +41,10 @@ namespace PepperDash.Essentials
         public bool EnableApiServer { get; set; } = true;
 
         /// <summary>
-        /// Enable subscriptions for Messengers
+        /// Enables subscriptions for messengers
         /// </summary>
         [JsonProperty("enableMessengerSubscriptions")]
+        [Obsolete("This property is obsolete and will be removed in a future version. All messengers are now subscription based.")]
         public bool EnableMessengerSubscriptions { get; set; }
     }
 
@@ -288,4 +290,4 @@ namespace PepperDash.Essentials
         /// </summary>
         NEO
     }
-}
\ No newline at end of file
+}