diff --git a/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/MenuHelper.h b/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/MenuHelper.h
index e9aed78..62d6e00 100644
--- a/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/MenuHelper.h
+++ b/Trenser.VehicleServiceSystem/Trenser.VehicleServiceSystem/views/MenuHelper.h
@@ -91,7 +91,7 @@ Parameters:
 Returns:
     - void
 */
-static void selectInventoryItems(util::Map<std::string, const InventoryItem*>& currentInventoryItems, util::Vector<std::string>& selectedInventoryItems)
+inline void selectInventoryItems(util::Map<std::string, const InventoryItem*>& currentInventoryItems, util::Vector<std::string>& selectedInventoryItems)
 {
 	bool doRun = true, hasInventoryItems = false;
 	util::Map<int, const InventoryItem*> currentInventoryMap;
@@ -166,7 +166,7 @@ Parameters:
 Returns:
 	- bool: True if pending services exist, False otherwise
 */
-static bool listServiceBookings(util::Map<std::string, const ServiceBooking*>& currentBookings, int& bookingsSize, util::Map<int, const ServiceBooking*>& serviceBookingsMap)
+inline bool listServiceBookings(util::Map<std::string, const ServiceBooking*>& currentBookings, int& bookingsSize, util::Map<int, const ServiceBooking*>& serviceBookingsMap)
 {
     int currentIndex = 1;
 	bool hasPendingService = false;
@@ -220,7 +220,7 @@ Parameters:
 Returns:
 	- const ServiceBooking*: Pointer to the selected booking, or nullptr if invalid
 */
-static const ServiceBooking* selectPendingServiceBookings(util::Map<int, const ServiceBooking*>& serviceBookingsMap)
+inline const ServiceBooking* selectPendingServiceBookings(util::Map<int, const ServiceBooking*>& serviceBookingsMap)
 {
 	int userInputIndex;
 	std::cout << "Enter a valid service index: ";
@@ -246,7 +246,7 @@ Parameters:
 Returns:
 	- void
 */
-static void listAvailableTechnicians(util::Map<std::string, const User*> currentAvailableTechnicians, int numberOfTechnicians, util::Map<int, const User*>& currentAvailableTechniciansMap)
+inline void listAvailableTechnicians(util::Map<std::string, const User*> currentAvailableTechnicians, int numberOfTechnicians, util::Map<int, const User*>& currentAvailableTechniciansMap)
 {
 	bool hasTechnicians = false;
     int currentIndex = 1;
@@ -284,7 +284,7 @@ Parameters:
 Returns:
 	- const User*: Pointer to the selected technician, or nullptr if invalid
 */
-static const User* selectTechnician(util::Map<int, const User*>& currentAvailableTechniciansMap)
+inline const User* selectTechnician(util::Map<int, const User*>& currentAvailableTechniciansMap)
     {
 	int userInputIndex;
 	util::read(userInputIndex);
@@ -307,7 +307,7 @@ Parameters:
 Returns:
 	- std::string: ID of the selected invoice, or empty string if none selected
 */
-static std::string selectInvoiceFromUserForPayment(const util::Map<std::string, const Invoice*>& currentInvoices)
+inline std::string selectInvoiceFromUserForPayment(const util::Map<std::string, const Invoice*>& currentInvoices)
 {
 	int currentIndex = 1, choice;
 	util::Map<int, const Invoice*> pendingInvoicesForPayment;
@@ -372,7 +372,7 @@ Parameters:
 Returns:
 	- util::PaymentMode: Selected payment mode
 */
-static util::PaymentMode selectPaymentMode()
+inline util::PaymentMode selectPaymentMode()
 {
 	int choice;
 	std::cout << "Enter the payment Mode\n1.OFFLINE\n2.ONLINE\nChoice: ";
@@ -405,7 +405,7 @@ Returns:
 Throws:
 	- std::runtime_error if a null invoice is encountered
 */
-static void displayInvoices(util::Map<std::string, const Invoice*> currentUserInvoices)
+inline void displayInvoices(util::Map<std::string, const Invoice*> currentUserInvoices)
 {
 	if (currentUserInvoices.getSize() == 0)
     {
@@ -471,7 +471,7 @@ Parameters:
 Returns:
 	- std::string: ID of the selected job card, or empty string if none selected
 */
-static std::string selectJobCardToComplete(util::Map<std::string, const JobCard*>& assignedJobCards, util::Map<int, const JobCard*>& incompleteJobCards)
+inline std::string selectJobCardToComplete(util::Map<std::string, const JobCard*>& assignedJobCards, util::Map<int, const JobCard*>& incompleteJobCards)
     {
 	int currentIndex = 1;
 	int choice;