diff --git a/modules/batch_users/batch_users.py b/modules/batch_users/batch_users.py
index 6e94e0c..55ee6f3 100644
--- a/modules/batch_users/batch_users.py
+++ b/modules/batch_users/batch_users.py
@@ -21,7 +21,7 @@ class UserDTO(BaseModel):
     passwordSalt: str
     groupName: Optional[str] = None
     corporate: Optional[str] = None
-    studentID: Optional[str] = None
+    studentID: Optional[str | int] = None
     expiryDate: Optional[str] = None
     demographicInformation: Optional[DemographicInfo] = None
 
diff --git a/modules/batch_users/service.py b/modules/batch_users/service.py
index 18155cf..60861ba 100644
--- a/modules/batch_users/service.py
+++ b/modules/batch_users/service.py
@@ -44,7 +44,7 @@ class BatchUsers:
 
         result = self._upload_users('./tmp', file_name)
         if result.returncode != 0:
-            error_msg = f"Couldn't upload users. Failed to run command firebase auth import -> ```cmd {result.stderr}```"
+            error_msg = f"Couldn't upload users. Failed to run command firebase auth import -> ```cmd {result.stdout}```"
             self._logger.error(error_msg)
             return error_msg
 
@@ -55,7 +55,11 @@ class BatchUsers:
 
     @staticmethod
     def _map_to_batch(request_data: Dict) -> BatchUsersDTO:
-        users: list[UserDTO] = [UserDTO(**user) for user in request_data["users"]]
+        users_list = [{**user} for user in request_data["users"]]
+        for user in users_list:
+            user["studentID"] = str(user["studentID"])
+
+        users: list[UserDTO] = [UserDTO(**user) for user in users_list]
         return BatchUsersDTO(makerID=request_data["makerID"], users=users)
 
     @staticmethod
@@ -209,14 +213,14 @@ class BatchUsers:
         if corporate_user:
             self._db.codes.update_one(
                 {"id": code},
-                {"$set": {"creator": corporate_user.id}},
+                {"$set": {"creator": corporate_user["id"]}},
                 upsert=True
             )
             group_type = "Students" if user.type == "student" else "Teachers"
 
             group = self._db.groups.find_one(
                 {
-                    "admin": corporate_user.id,
+                    "admin": corporate_user["id"],
                     "name": group_type
                 }
             )
@@ -226,13 +230,13 @@ class BatchUsers:
                 if user_id not in participants:
                     participants.append(user_id)
                     self._db.groups.update_one(
-                        {"id": group.id},
+                        {"id": group["id"]},
                         {"$set": {"participants": participants}}
                     )
                     
             else:
                 group = {
-                    'admin': corporate_user.id,
+                    'admin': corporate_user["id"],
                     'id': str(uuid.uuid4()),
                     'name': group_type,
                     'participants': [user_id],
@@ -244,14 +248,14 @@ class BatchUsers:
     def _assign_user_to_group_by_name(self, user: UserDTO, maker_id: str):
         user_id = str(user.id)
 
-        group = self._db.groups.find_one(
+        groups = list(self._db.groups.find(
             {
                 "admin": maker_id,
-                "name": user.group_name.strip()
+                "name": user.groupName.strip()
             }
-        )
+        ))
 
-        if group:
+        if len(groups) == 0:
             new_group = {
                 'id': str(uuid.uuid4()),
                 'admin': maker_id,
@@ -261,10 +265,11 @@ class BatchUsers:
             }
             self._db.groups.insert_one(new_group)
         else:
-            participants = group.participants
+            group = groups[0]
+            participants = group["participants"]
             if user_id not in participants:
                 participants.append(user_id)
                 self._db.groups.update_one(
-                    {"id": group.id},
+                    {"id": group["id"]},
                     {"$set": {"participants": participants}}
                 )
diff --git a/modules/training_content/service.py b/modules/training_content/service.py
index e6162d7..e9b3280 100644
--- a/modules/training_content/service.py
+++ b/modules/training_content/service.py
@@ -40,7 +40,7 @@ class TrainingContentService:
         for area in training_content.weak_areas:
             weak_areas["weak_areas"].append(area.dict())
 
-        new_id = uuid.uuid4()
+        new_id = str(uuid.uuid4())
         training_doc = {
             'id': new_id,
             'created_at': int(datetime.now().timestamp() * 1000),
@@ -224,8 +224,6 @@ class TrainingContentService:
 
                 exam_map[session_key]["score"] = round((exam_total_correct / exam_total_questions) * 100)
                 exam_map[session_key]["module"] = module
-                with open('exam_result.json', 'w') as file:
-                    json.dump({"exams": exercises}, file, indent=4)
 
         return {"exams": exercises}, exam_map