Index: firmware/App/Services/Messaging.h
===================================================================
diff -u -r70f10c77f4f9a48d51030c00504d520fe25d0ba9 -rad2492d1c1b63ec2727e5a7a13c5b3a4f8021f86
--- firmware/App/Services/Messaging.h	(.../Messaging.h)	(revision 70f10c77f4f9a48d51030c00504d520fe25d0ba9)
+++ firmware/App/Services/Messaging.h	(.../Messaging.h)	(revision ad2492d1c1b63ec2727e5a7a13c5b3a4f8021f86)
@@ -14,15 +14,16 @@
 * @date    (original)  01-Aug-2024
 *
 ***************************************************************************/
-
-#ifndef __MESSAGING_H__
-#define __MESSAGING_H__
 
+#ifndef __MESSAGING_H__
+#define __MESSAGING_H__
+
 #include "TDCommon.h"
 #include "TDDefs.h"
 #include "MessageSupport.h"
 #include "MsgQueues.h"
-
+#include "OperationModes.h"
+
 /**
  *  @defgroup Messaging Messaging
  *  @brief The system communication messages unit provides helper functions
@@ -35,7 +36,7 @@
 // ********** public definitions **********
 
 #define ACK_REQUIRED                    TRUE            ///< Macro for functions that want to know if an outgoing message requires acknowledgement from receiver.
-#define ACK_NOT_REQUIRED                FALSE           ///< Macro for functions that want to know if an outgoing message requires acknowledgement from receiver.
+#define ACK_NOT_REQUIRED                FALSE           ///< Macro for functions that want to know if an outgoing message requires acknowledgement from receiver.
 
 #pragma pack(push, 1)
 /// Payload record structure for ACK response.
@@ -49,6 +50,14 @@
 {
     U08 userRequest;            ///< request to confirm, cancel, or reject off button request
 } UI_OFF_BUTTON_RESPONSE_PAYLOAD_T;
+
+/// Payload record structure for off button response.
+typedef struct
+{
+    U32 id;
+    U32 command;
+    U32 reason;
+} UI_PAYLOAD_T;
 #pragma pack(pop)
 
 /// Payload record structure for UI response.
@@ -138,13 +147,13 @@
     F32 maxHeparinBolusVolumeML;                            ///< Max heparin bolus volume in mL.
     U32 enableChemicalDisinfect;                            ///< Enable/disable chemical disinfect.
 } HD_INSTITUTIONAL_LOCAL_RECORD_T;
-
-// ********** public function prototypes **********
 
-// Serialize message
+// ********** public function prototypes **********
+
+// Serialize message
 U32 serializeMessage( MESSAGE_T msg, COMM_BUFFER_T buffer, BOOL ackReq );
 
-// ACK MSG
+// ACK MSG
 BOOL sendACKMsg( MESSAGE_T *message );
 
 // Handle version request message
@@ -160,17 +169,22 @@
 BOOL handleUICheckIn( MESSAGE_T *message );
 BOOL handleTesterLogInRequest( MESSAGE_T *message );
 BOOL handleUpdateAvailable( MESSAGE_T *message );
+BOOL handleUIVersionResponse( MESSAGE_T *message );
 
 BOOL testTDSoftwareResetRequest( MESSAGE_T *message );
 
 // Test send message helper functions
 BOOL sendEvent( TD_EVENT_ID_T event, EVENT_DATA_T dat1, EVENT_DATA_T dat2 );
-BOOL sendOffButtonMsgToUI( U08 prompt );
+BOOL sendPOSTTestResult( TD_POST_STATE_T test, BOOL passed );
+BOOL sendPOSTFinalResult( BOOL passed );
+BOOL sendUIVersionRequest( void );
+BOOL sendRequestForDDResendAlarms( void );
 
 BOOL testSetTestConfiguration( MESSAGE_T *message );
 BOOL testGetTestConfiguration( MESSAGE_T *message );
 BOOL testResetAllTestConfigurations( MESSAGE_T *message );
+BOOL sendAckResponseMsg( MSG_ID_T msgID, COMM_BUFFER_T buffer, BOOL ack );
 
 /**@}*/
 
-#endif
+#endif