Index: firmware/App/Services/SystemCommMessages.h
===================================================================
diff -u -r364c00d074d23989f2d714189a8c89964e32b458 -r2e21405574597474db0ebae86cdd7fa2d517f71c
--- firmware/App/Services/SystemCommMessages.h	(.../SystemCommMessages.h)	(revision 364c00d074d23989f2d714189a8c89964e32b458)
+++ firmware/App/Services/SystemCommMessages.h	(.../SystemCommMessages.h)	(revision 2e21405574597474db0ebae86cdd7fa2d517f71c)
@@ -8,7 +8,7 @@
 * @file    SystemCommMessages.h
 *
 * @author  (last)      Dara Navaei
-* @date    (last)      25-May-2022
+* @date    (last)      21-Sep-2022
 *
 * @author  (original)  Dara Navaei
 * @date    (original)  05-Nov-2019
@@ -160,6 +160,12 @@
 // MSG_ID_HD_REQUEST_DG_USAGE_INFO
 void handleHDRequestDGUsageInfo( MESSAGE_T * message );
 
+// MSG_ID_UI_REQUEST_SERVICE_MODE
+void handleServiceModeRequest( MESSAGE_T *message );
+
+// MSG_ID_DG_RESPONSE_SERVICE_MODE_REQUEST
+BOOL sendServiceModeResponse( BOOL accepted, U32 rejCode );
+
 // *********** public test support message functions **********
 
 // MSG_TESTER_LOG_IN
@@ -394,6 +400,15 @@
 // MSG_ID_HD_REQUEST_DG_ALARMS
 void handleResendAllAlarmsCommand( MESSAGE_T *message );
 
+// MSG_ID_DG_SET_OP_MODE_REQUEST
+void handleTestSetOpModeRequest( MESSAGE_T *message );
+
+// MSG_ID_DG_RESERVOIR_TARE_REQUEST
+void handleTestTareReservoirRequest( MESSAGE_T *message );
+
+// MSG_ID_HD_OP_MODE
+BOOL handleSetHDOperationMode( MESSAGE_T *message );
+
 /**@}*/
 
 #endif