diff --git a/Marco.Pms.Model/Dtos/Activities/CreateActivityMasterDto.cs b/Marco.Pms.Model/Dtos/Activities/CreateActivityMasterDto.cs
index 4532ddb..9961661 100644
--- a/Marco.Pms.Model/Dtos/Activities/CreateActivityMasterDto.cs
+++ b/Marco.Pms.Model/Dtos/Activities/CreateActivityMasterDto.cs
@@ -4,5 +4,6 @@
     {
         public string? ActivityName { get; set; }
         public string? UnitOfMeasurement { get; set; }
+        public List<string>? CheckList { get; set; }
     }
 }
diff --git a/Marco.Pms.Model/Entitlements/ActivityCheckList.cs b/Marco.Pms.Model/Entitlements/ActivityCheckList.cs
new file mode 100644
index 0000000..aa2637b
--- /dev/null
+++ b/Marco.Pms.Model/Entitlements/ActivityCheckList.cs
@@ -0,0 +1,10 @@
+namespace Marco.Pms.Model.Entitlements
+{
+    public class ActivityCheckList
+    {
+        public int Id { get; set; }
+        public int ActivityMasterId { get; set; }
+        public string? CheckList { get; set; }
+        public int TenantId { get; set; }
+    }
+}
diff --git a/Marco.Pms.Services/Controllers/MasterController.cs b/Marco.Pms.Services/Controllers/MasterController.cs
index 204d37b..1096484 100644
--- a/Marco.Pms.Services/Controllers/MasterController.cs
+++ b/Marco.Pms.Services/Controllers/MasterController.cs
@@ -43,6 +43,22 @@ namespace Marco.Pms.Services.Controllers
             var activityMaster = createActivity.ToActivityMasterFromCreateActivityMasterDto(tenantId);
             _context.ActivityMasters.Add(activityMaster);
             await _context.SaveChangesAsync();
+
+            if (createActivity.CheckList != null) {
+                List<ActivityCheckList> activityCheckList = new List<ActivityCheckList>();
+                foreach (var check in createActivity.CheckList)
+                {
+                    ActivityCheckList checkList = new ActivityCheckList
+                    {
+                        ActivityMasterId = activityMaster.Id,
+                        TenantId = tenantId,
+                        CheckList = check
+                    };
+                    activityCheckList.Add(checkList);
+                }
+                //_context.ActivityCheckList.AddRange(activityCheckList);
+                await _context.SaveChangesAsync();
+            }
             return Ok(ApiResponse<object>.SuccessResponse(activityMaster, "Activity created successfully", 200));
         }
 
@@ -52,11 +68,28 @@ namespace Marco.Pms.Services.Controllers
             var tenantId = _userHelper.GetTenantId();
             var employee = await _userHelper.GetCurrentEmployeeAsync();
             ActivityMaster? activity = await _context.ActivityMasters.FirstOrDefaultAsync(x => x.Id == id);
-            if (activity != null) { 
+            if (activity != null && createActivity.UnitOfMeasurement != null) { 
                 activity.ActivityName = activity.ActivityName;
                 activity.UnitOfMeasurement = createActivity.UnitOfMeasurement;
                 activity.TenantId = tenantId;
                 await _context.SaveChangesAsync();
+
+                if (createActivity.CheckList != null)
+                {
+                    List<ActivityCheckList> activityCheckList = new List<ActivityCheckList>();
+                    foreach (var check in createActivity.CheckList)
+                    {
+                        ActivityCheckList checkList = new ActivityCheckList
+                        {
+                            ActivityMasterId = activity.Id,
+                            TenantId = tenantId,
+                            CheckList = check
+                        };
+                        activityCheckList.Add(checkList);
+                    }
+                    //_context.ActivityCheckList.UpdateRange(activityCheckList);
+                    await _context.SaveChangesAsync();
+                }
                 return Ok(ApiResponse<object>.SuccessResponse(activity, "Activity updated successfully", 200));
             }