Index: firmware/App/Services/Messaging.c
===================================================================
diff -u -r48558494898419baa0697009318fb543fe0b8a46 -r3e1af7cc2576e347ab8bdf2f400196b2301def07
--- firmware/App/Services/Messaging.c	(.../Messaging.c)	(revision 48558494898419baa0697009318fb543fe0b8a46)
+++ firmware/App/Services/Messaging.c	(.../Messaging.c)	(revision 3e1af7cc2576e347ab8bdf2f400196b2301def07)
@@ -7,8 +7,8 @@
 *
 * @file    Messaging.c
 *
-* @author  (last)      Sameer Kalliadan Poyil
-* @date    (last)      06-Mar-2026
+* @author  (last)      Raghu Kallala
+* @date    (last)      30-Mar-2026
 *
 * @author  (original)  Vinayakam Mani
 * @date    (original)  07-Aug-2024
@@ -284,6 +284,7 @@
     { MSG_ID_FP_DEF_PRE_GEN_PUBLISH_INTERVAL_OVERRIDE_REQUEST,                      &testPreGenPermeateDefDataPublishIntervalOverride},
     { MSG_ID_FP_DEF_GEN_PUBLISH_INTERVAL_OVERRIDE_REQUEST,                          &testGenPermeateDefDataPublishIntervalOverride},
     { MSG_ID_FP_DEF_STATUS_REQUEST,                                                 &testGetFPDefeaturedStatus },
+    { MSG_ID_FP_SET_OPERATION_SUB_MODE_REQUEST,                                     &testSetFPOperationSubMode },
 };
 
 /// Calculation for number of entries in the incoming message function handler look-up table.