diff --git a/controllers_v2/message/chat/whatsapp_nimbus.py b/controllers_v2/message/chat/whatsapp_nimbus.py
index 653d274..4ce8453 100644
--- a/controllers_v2/message/chat/whatsapp_nimbus.py
+++ b/controllers_v2/message/chat/whatsapp_nimbus.py
@@ -40,6 +40,7 @@ from utils_v2.date_time import date_time
 from utils_v2.database.async_mysql_v2 import AsyncMySQL
 from utils_v2.database.async_mongo_v2 import AsyncMongo
 from utils_v2.cache.async_redis_cache_v2 import AsyncRedisCache
+from utils_v2.logging.context import AsyncLoggerContext
 
 # Controllers:
 from controllers_v2.message.chat.base import ChatController
@@ -65,6 +66,8 @@ import httpx
 # For asynchronous activities:
 import asyncio
 
+# Common:
+from shared import constants
 
 #   *****************************************************************************************************************
 #  *****                                                                                                          ****
@@ -153,7 +156,15 @@ class WhatsAppNimbusController(ChatController):
     # ┗┓┏┓┏┓┏┫  ┃┃┃┏┓┏┏┏┓┏┓┏┓┏
     # ┗┛┗ ┛┗┗┻  ┛ ┗┗ ┛┛┗┻┗┫┗ ┛
     #                     ┛
-
+    @AsyncLoggerContext.log_it(
+        api_version="1.0.0",
+        project=constants.PROJECT_NAME,
+        log_type=constants.MODULE_NAME,
+        operation="whatsappSendOne",
+        log_input=True,
+        log_output=True,
+        sensitive_keys=None
+    )
     async def send_one_message(
             self,
             sql_conn: AsyncMySQL,
@@ -221,6 +232,15 @@ class WhatsAppNimbusController(ChatController):
             chatMessage = sent_message_model
         )
 
+    @AsyncLoggerContext.log_it(
+        api_version="1.0.0",
+        project=constants.PROJECT_NAME,
+        log_type=constants.MODULE_NAME,
+        operation="whatsappSendMany",
+        log_input=True,
+        log_output=True,
+        sensitive_keys=None
+    )
     async def send_many_messages(
             self,
             sql_conn: AsyncMySQL,
diff --git a/models/message/chat/send.py b/models/message/chat/send.py
index 4a30c94..33fdcfe 100644
--- a/models/message/chat/send.py
+++ b/models/message/chat/send.py
@@ -124,9 +124,10 @@ class NimbusWhatsAppMessage(BaseModel):
     )
 
     # ---- ADDED BY OMKAR 2025-05-13 ----
-    waGroupId: str = Field(
+    waGroupId: str | None = Field(
         description="The Whatsapp group ID. of the target recipient(s) group",
-        frozen=True
+        frozen=True,
+        default=None
     )
 
     waGroupName: str | None = Field(