diff --git a/bot.py b/bot.py
index 5325421..7764413 100644
--- a/bot.py
+++ b/bot.py
@@ -4,7 +4,11 @@ import syms as _bot_syms
 
 async def bot_start(update, context):
   chat_id = update.effective_chat.id
-  await update.message.reply_text(f'wb_alert bot: <code>{chat_id}</code>', parse_mode='HTML')
+  try: thread_id= update.message.message_thread_id
+  except: thread_id= None
+  txt= f'wb_alert bot: <code>{chat_id}</code>'
+  if thread_id: txt= f'wb_alert bot: <code>{chat_id}</code> thread: <code>{thread_id}</code>'
+  await update.message.reply_text(txt, parse_mode='HTML')
   print(f'alert_bot bot_start: {chat_id}')
 
 def main():
diff --git a/msg_sender.py b/msg_sender.py
index 8bdc97e..80f98dd 100644
--- a/msg_sender.py
+++ b/msg_sender.py
@@ -6,12 +6,15 @@ def _wb_telegram_send_alert(message: str):
   users= _bot_syms.USERS
   
   for user in users:
+    u= user[0]
+    thread_id= user[1]
     print(f"wb_alert_bot _wb_telegram_send_alert: sending message to {user}...")
     payload = {
-        'chat_id': user,
+        'chat_id': u,
         'text': message,
-        'parse_mode': 'Markdown'
+        'parse_mode': 'Markdown',
     }
+    if thread_id: payload['message_thread_id']= thread_id
 
     try:
       res = _rqsts.post(_bot_syms.TELEGRAM_API_URL, data=payload, timeout=3)