diff --git a/NATIVEMESSAGE_GUIDE.md b/NATIVEMESSAGE_GUIDE.md
index 32097925c..16408065c 100644
--- a/NATIVEMESSAGE_GUIDE.md
+++ b/NATIVEMESSAGE_GUIDE.md
@@ -1,4 +1,18 @@
 # The Nativemessage
+
+> **Note: this feature is currently not functional on Android.**
+>
+> Since **7.12.0**, when the SDK's internals moved to `mobile-core`, nothing in the library
+> invokes `SpClient.onNativeMessageReady`. `SpConsentLibImpl` — the only class that called it —
+> was removed, and `SpConsentLibMobileCore` renders every message through `SPConsentWebView`.
+> `MessageType` has no native variant, so a property configured with a native message is
+> rendered as a web message instead, with no callback and no error.
+>
+> The last release in which the callback was invoked is **7.11.2**. The equivalent iOS API,
+> `onSPNativeMessageReady`, is unaffected.
+>
+> The rest of this guide is kept for reference and for anyone on 7.11.2 or earlier.
+
 ## Table of Contents
 - [Intro](#intro)
 - [Configure a property to use with the Nativemessage](#configure-a-property-to-use-with-the-nativemessage)
diff --git a/cmplibrary/src/main/java/com/sourcepoint/cmplibrary/SpClient.kt b/cmplibrary/src/main/java/com/sourcepoint/cmplibrary/SpClient.kt
index 8b92ee40e..98587f8cb 100644
--- a/cmplibrary/src/main/java/com/sourcepoint/cmplibrary/SpClient.kt
+++ b/cmplibrary/src/main/java/com/sourcepoint/cmplibrary/SpClient.kt
@@ -14,8 +14,13 @@ interface SpClient {
     fun onUIReady(view: View)
 
     /**
-     * It is invoked when the message is available to the client App
+     * It is invoked when the message is available to the client App.
+     *
+     * Currently this callback is disabled. Since 7.12.0 every message is rendered through
+     * `SPConsentWebView`, and no code path in the library reaches this callback. See
+     * NATIVEMESSAGE_GUIDE.md.
      */
+    @Deprecated("Currently this callback is disabled. Since 7.12.0 the SDK renders every message through SPConsentWebView and no code path reaches this callback. See NATIVEMESSAGE_GUIDE.md.")
     fun onNativeMessageReady(message: MessageStructure, messageController: NativeMessageController) {}
 
     @Deprecated("onMessageReady callback will be removed in favor of onMessageReady(message: MessageStructure, messageController: NativeMessageController). Currently this callback is disabled.")