diff --git a/src/api/tasks.py b/src/api/tasks.py
index 8e10cb7c..62430ec2 100644
--- a/src/api/tasks.py
+++ b/src/api/tasks.py
@@ -29,10 +29,10 @@ async def cancel_task(request: Request, task_service, session_manager):
 
     success = await task_service.cancel_task(user.user_id, task_id)
     if not success:
-        await TelemetryClient.send_event(Category.TASK_OPERATIONS, MessageId.ORBTA0091E)
+        await TelemetryClient.send_event(Category.TASK_OPERATIONS, MessageId.ORBTA0094E)
         return JSONResponse(
             {"error": "Task not found or cannot be cancelled"}, status_code=400
         )
 
-    await TelemetryClient.send_event(Category.TASK_OPERATIONS, MessageId.ORBTA0092I)
+    await TelemetryClient.send_event(Category.TASK_OPERATIONS, MessageId.ORBTA0093I)
     return JSONResponse({"status": "cancelled", "task_id": task_id})
diff --git a/src/services/task_service.py b/src/services/task_service.py
index 478304c4..5ab311e3 100644
--- a/src/services/task_service.py
+++ b/src/services/task_service.py
@@ -132,9 +132,16 @@ class TaskService:
         # Store reference to background task for cancellation
         upload_task.background_task = background_task
 
-        # Send telemetry event for task creation
+        # Send telemetry event for task creation with metadata
         asyncio.create_task(
-            TelemetryClient.send_event(Category.TASK_OPERATIONS, MessageId.ORBTA0090I)
+            TelemetryClient.send_event(
+                Category.TASK_OPERATIONS,
+                MessageId.ORBTA0090I,
+                metadata={
+                    "total_files": len(items),
+                    "processor_type": processor.__class__.__name__,
+                }
+            )
         )
 
         return task_id
@@ -180,6 +187,19 @@ class TaskService:
             if upload_task.processed_files >= upload_task.total_files:
                 upload_task.status = TaskStatus.COMPLETED
                 upload_task.updated_at = time.time()
+                
+                # Send telemetry for task completion
+                asyncio.create_task(
+                    TelemetryClient.send_event(
+                        Category.TASK_OPERATIONS,
+                        MessageId.ORBTA0091I,
+                        metadata={
+                            "total_files": upload_task.total_files,
+                            "successful_files": upload_task.successful_files,
+                            "failed_files": upload_task.failed_files,
+                        }
+                    )
+                )
 
         except Exception as e:
             logger.error(
@@ -189,8 +209,23 @@ class TaskService:
 
             traceback.print_exc()
             if user_id in self.task_store and task_id in self.task_store[user_id]:
-                self.task_store[user_id][task_id].status = TaskStatus.FAILED
-                self.task_store[user_id][task_id].updated_at = time.time()
+                failed_task = self.task_store[user_id][task_id]
+                failed_task.status = TaskStatus.FAILED
+                failed_task.updated_at = time.time()
+                
+                # Send telemetry for task failure
+                asyncio.create_task(
+                    TelemetryClient.send_event(
+                        Category.TASK_OPERATIONS,
+                        MessageId.ORBTA0092E,
+                        metadata={
+                            "total_files": failed_task.total_files,
+                            "processed_files": failed_task.processed_files,
+                            "successful_files": failed_task.successful_files,
+                            "failed_files": failed_task.failed_files,
+                        }
+                    )
+                )
 
     async def background_custom_processor(
         self, user_id: str, task_id: str, items: list
@@ -237,6 +272,19 @@ class TaskService:
             # Mark task as completed
             upload_task.status = TaskStatus.COMPLETED
             upload_task.updated_at = time.time()
+            
+            # Send telemetry for task completion
+            asyncio.create_task(
+                TelemetryClient.send_event(
+                    Category.TASK_OPERATIONS,
+                    MessageId.ORBTA0091I,
+                    metadata={
+                        "total_files": upload_task.total_files,
+                        "successful_files": upload_task.successful_files,
+                        "failed_files": upload_task.failed_files,
+                    }
+                )
+            )
 
         except asyncio.CancelledError:
             logger.info("Background processor cancelled", task_id=task_id)
@@ -252,8 +300,23 @@ class TaskService:
 
             traceback.print_exc()
             if user_id in self.task_store and task_id in self.task_store[user_id]:
-                self.task_store[user_id][task_id].status = TaskStatus.FAILED
-                self.task_store[user_id][task_id].updated_at = time.time()
+                failed_task = self.task_store[user_id][task_id]
+                failed_task.status = TaskStatus.FAILED
+                failed_task.updated_at = time.time()
+                
+                # Send telemetry for task failure
+                asyncio.create_task(
+                    TelemetryClient.send_event(
+                        Category.TASK_OPERATIONS,
+                        MessageId.ORBTA0092E,
+                        metadata={
+                            "total_files": failed_task.total_files,
+                            "processed_files": failed_task.processed_files,
+                            "successful_files": failed_task.successful_files,
+                            "failed_files": failed_task.failed_files,
+                        }
+                    )
+                )
 
     def get_task_status(self, user_id: str, task_id: str) -> dict | None:
         """Get the status of a specific upload task
diff --git a/src/utils/telemetry/message_id.py b/src/utils/telemetry/message_id.py
index dd8339c3..3600eb54 100644
--- a/src/utils/telemetry/message_id.py
+++ b/src/utils/telemetry/message_id.py
@@ -130,10 +130,14 @@ class MessageId:
     
     # Message: Task created successfully
     ORBTA0090I = "ORBTA0090I"
+    # Message: Task completed successfully
+    ORBTA0091I = "ORBTA0091I"
     # Message: Task failed
-    ORBTA0091E = "ORBTA0091E"
+    ORBTA0092E = "ORBTA0092E"
     # Message: Task cancelled
-    ORBTA0092I = "ORBTA0092I"
+    ORBTA0093I = "ORBTA0093I"
+    # Message: Task cancellation failed
+    ORBTA0094E = "ORBTA0094E"
     
     # Category: CHAT_OPERATIONS ------------------------------------------------>