Index: firmware/App/Services/Messaging.c
===================================================================
diff -u -rfd897db8177752330ad08d877e0a13620513dbdc -r6d4aa77e6b85aa7621a234660f631e725fb1d441
--- firmware/App/Services/Messaging.c	(.../Messaging.c)	(revision fd897db8177752330ad08d877e0a13620513dbdc)
+++ firmware/App/Services/Messaging.c	(.../Messaging.c)	(revision 6d4aa77e6b85aa7621a234660f631e725fb1d441)
@@ -7,8 +7,8 @@
 *
 * @file    Messaging.c
 *
-* @author  (last)      Sameer Kalliadan Poyil
-* @date    (last)      16-Apr-2026
+* @author  (last)      Raghu Kallala
+* @date    (last)      22-Apr-2026
 *
 * @author  (original)  Vinayakam Mani
 * @date    (original)  07-Aug-2024
@@ -282,6 +282,7 @@
     { MSG_ID_DD_BICART_UPPER_PRESSURE_OVERRIDE_REQUEST,                             &testDryBiCartUpperCartPressureOverride },
     { MSG_ID_DD_BICART_LOWER_PRESSURE_OVERRIDE_REQUEST,                             &testDryBiCartLowerCartPressureOverride } ,
     { MSG_ID_FP_SET_OPERATION_SUB_MODE_REQUEST,                                     &testSetFPOperationSubMode },
+    { MSG_ID_DD_SET_OPERATION_SUB_MODE_OVERRIDE_REQUEST,                            &testSetOperationSubMode },
     { MSG_ID_FP_BOOST_PUMP_INSTALL_STATUS_REQUEST,                                  &testGetFPBoostPumpInstallStatus },
     { MSG_ID_DD_CONDUCTIVITY_SENSOR_VERSION_REQUEST,                                &testHandleConductivitySensorVersionRequest },
     { MSG_ID_FP_CONDUCTIVITY_SENSOR_VERSION_REQUEST,                                &testHandleConductivitySensorVersionRequest },