diff --git a/android/app/src/main/java/com/example/petstoremobile/adapters/AppointmentAdapter.java b/android/app/src/main/java/com/example/petstoremobile/adapters/AppointmentAdapter.java
index 9960b5b6..fb260541 100644
--- a/android/app/src/main/java/com/example/petstoremobile/adapters/AppointmentAdapter.java
+++ b/android/app/src/main/java/com/example/petstoremobile/adapters/AppointmentAdapter.java
@@ -59,14 +59,14 @@ public class AppointmentAdapter extends RecyclerView.Adapter<AppointmentAdapter.
         String status = a.getStatus() != null ? a.getStatus() : "";
         holder.tvAppointmentStatus.setText(status);
 
-        switch (status) {
-            case "Booked":
+        switch (status.toUpperCase()) {
+            case "BOOKED":
                 holder.tvAppointmentStatus.setBackgroundColor(Color.parseColor("#2196F3")); // blue
                 break;
-            case "Completed":
+            case "COMPLETED":
                 holder.tvAppointmentStatus.setBackgroundColor(Color.parseColor("#4CAF50")); // green
                 break;
-            case "Cancelled":
+            case "CANCELLED":
                 holder.tvAppointmentStatus.setBackgroundColor(Color.parseColor("#F44336")); // red
                 break;
             default:
diff --git a/android/app/src/main/java/com/example/petstoremobile/dtos/AppointmentDTO.java b/android/app/src/main/java/com/example/petstoremobile/dtos/AppointmentDTO.java
index 01f8ef5d..8505753e 100644
--- a/android/app/src/main/java/com/example/petstoremobile/dtos/AppointmentDTO.java
+++ b/android/app/src/main/java/com/example/petstoremobile/dtos/AppointmentDTO.java
@@ -1,8 +1,5 @@
 package com.example.petstoremobile.dtos;
 
-import java.math.BigDecimal;
-import java.util.List;
-
 public class AppointmentDTO {
     
     private Long appointmentId;
@@ -17,20 +14,20 @@ public class AppointmentDTO {
     private String appointmentDate;
     private String appointmentTime;
     private String appointmentStatus;
-    private List<String> petNames;
-    private List<Long> petIds;
+    private String petName;
+    private Long petId;
     private String createdAt;
     private String updatedAt;
 
     public AppointmentDTO(Long customerId, Long storeId, Long serviceId,
                           String appointmentDate, String appointmentTime,
-                          String appointmentStatus, List<Long> petIds) {
-        this(customerId, storeId, serviceId, null, appointmentDate, appointmentTime, appointmentStatus, petIds);
+                          String appointmentStatus, Long petId) {
+        this(customerId, storeId, serviceId, null, appointmentDate, appointmentTime, appointmentStatus, petId);
     }
 
     public AppointmentDTO(Long customerId, Long storeId, Long serviceId, Long employeeId,
                           String appointmentDate, String appointmentTime,
-                          String appointmentStatus, List<Long> petIds) {
+                          String appointmentStatus, Long petId) {
         this.customerId = customerId;
         this.storeId = storeId;
         this.serviceId = serviceId;
@@ -38,7 +35,7 @@ public class AppointmentDTO {
         this.appointmentDate = appointmentDate;
         this.appointmentTime = appointmentTime;
         this.appointmentStatus = appointmentStatus;
-        this.petIds = petIds;
+        this.petId = petId;
     }
 
     public Long getAppointmentId() {
@@ -89,12 +86,12 @@ public class AppointmentDTO {
         return appointmentStatus;
     }
 
-    public List<String> getPetNames() {
-        return petNames;
+    public String getPetName() {
+        return petName;
     }
 
-    public List<Long> getPetIds() {
-        return petIds;
+    public Long getPetId() {
+        return petId;
     }
 
     public String getCreatedAt() {
@@ -105,16 +102,8 @@ public class AppointmentDTO {
         return updatedAt;
     }
 
-    public String getPetName() {
-        return (petNames != null && !petNames.isEmpty()) ? petNames.get(0) : "";
-    }
-
     public Long getPetID() {
-        return (petIds != null && !petIds.isEmpty()) ? petIds.get(0) : null;
-    }
-
-    public Long getPetId() {
-        return getPetID();
+        return petId;
     }
 
     public String getServiceType() {
diff --git a/android/app/src/main/java/com/example/petstoremobile/fragments/listfragments/detailfragments/AppointmentDetailFragment.java b/android/app/src/main/java/com/example/petstoremobile/fragments/listfragments/detailfragments/AppointmentDetailFragment.java
index d497f529..cf9bb837 100644
--- a/android/app/src/main/java/com/example/petstoremobile/fragments/listfragments/detailfragments/AppointmentDetailFragment.java
+++ b/android/app/src/main/java/com/example/petstoremobile/fragments/listfragments/detailfragments/AppointmentDetailFragment.java
@@ -48,7 +48,6 @@ public class AppointmentDetailFragment extends Fragment {
 
     private final Integer[] HOURS = {9,10,11,12,13,14,15,16,17};
     private final Integer[] MINUTES = {0,15,30,45};
-    private final String[] STATUSES = {"Booked","Completed","Cancelled"};
 
     private AppointmentViewModel appointmentViewModel;
     private PetViewModel petViewModel;
@@ -95,7 +94,8 @@ public class AppointmentDetailFragment extends Fragment {
      * Configures the adapters for spinners.
      */
     private void setupSpinners() {
-        SpinnerUtils.setupStringSpinner(requireContext(), binding.spinnerAppointmentStatus, STATUSES);
+        SpinnerUtils.setupStringSpinner(requireContext(), binding.spinnerAppointmentStatus,
+                new String[]{"Booked", "Completed", "Cancelled", "Missed"});
 
         String[] hours = new String[HOURS.length];
         for (int i = 0; i < HOURS.length; i++)
@@ -243,7 +243,7 @@ public class AppointmentDetailFragment extends Fragment {
             if (resource == null) return;
             if (resource.status == Resource.Status.SUCCESS && resource.data != null) {
                 AppointmentDTO a = resource.data;
-                preselectedPetId = (a.getPetID() != null) ? a.getPetID() : -1;
+                preselectedPetId = (a.getPetId() != null) ? a.getPetId() : -1;
                 preselectedServiceId = (a.getServiceId() != null) ? a.getServiceId() : -1;
                 preselectedCustomerId = (a.getCustomerId() != null) ? a.getCustomerId() : -1;
                 preselectedStoreId = (a.getStoreId() != null) ? a.getStoreId() : -1;
@@ -265,7 +265,12 @@ public class AppointmentDetailFragment extends Fragment {
                     } catch (NumberFormatException ignored) {}
                 }
 
-                SpinnerUtils.setSelectionByValue(binding.spinnerAppointmentStatus, a.getAppointmentStatus());
+                // Match Title labels with backend values
+                String status = a.getAppointmentStatus();
+                if (status != null && !status.isEmpty()) {
+                    String formattedStatus = status.substring(0, 1).toUpperCase() + status.substring(1).toLowerCase();
+                    SpinnerUtils.setSelectionByValue(binding.spinnerAppointmentStatus, formattedStatus);
+                }
 
                 refreshPetSpinner();
                 refreshServiceSpinner();
@@ -306,11 +311,13 @@ public class AppointmentDetailFragment extends Fragment {
         String time = String.format("%02d:%02d",
                 HOURS[binding.spinnerHour.getSelectedItemPosition()],
                 MINUTES[binding.spinnerMinute.getSelectedItemPosition()]);
-        String status = STATUSES[binding.spinnerAppointmentStatus.getSelectedItemPosition()];
+        
+        // Get status and convert to uppercase for backend
+        String status = binding.spinnerAppointmentStatus.getSelectedItem().toString().toUpperCase();
 
 
-        // Validate future date+time if status is Booked
-        if ("Booked".equalsIgnoreCase(status)) {
+        // Validate future date+time if status is BOOKED
+        if ("BOOKED".equalsIgnoreCase(status)) {
             try {
                 String[] dateParts = date.split("-");
                 String[] timeParts = time.split(":");
@@ -342,7 +349,7 @@ public class AppointmentDetailFragment extends Fragment {
                 date,
                 time,
                 status,
-                Collections.singletonList(pet.getPetId())
+                pet.getPetId()
         );
 
         androidx.lifecycle.Observer<Resource<AppointmentDTO>> observer = resource -> {