How to Fix "Telegram Conflict: terminated by other getUpdates request" Error

If you have been coding Telegram bots for more than a few days, you have almost certainly encountered this dreaded log message:

telegram.error.Conflict: Conflict: terminated by other getUpdates request; make sure that only one bot instance is running

Why Does This Error Happen?

Telegram's Bot API enforces a strict architectural rule: only one single process in the entire world may call getUpdates for a given bot token at any given moment.

This error occurs when:

1. Your bot is running simultaneously on both your local PC and your cloud server.
2. A previous bot process was not cleanly stopped and is still lingering in the background (zombie process).
3. A webhook was previously configured on the bot and was not deleted before switching to polling.

Solution 1: Terminate Duplicate Local Processes

If you are on Windows, check Task Manager for lingering python.exe processes. On Linux/macOS, run:

pkill -f "python.*bot.py"

Solution 2: Delete Hanging Webhooks

If your bot previously used webhooks, Telegram will continuously reject your getUpdates polling calls. Open your web browser and visit this URL (replace with your real token):

https://api.telegram.org/bot<YOUR_BOT_TOKEN>/deleteWebhook?drop_pending_updates=true

You should receive a JSON response: {"ok":true,"result":true,"description":"Webhook was deleted"}.

Solution 3: Deploy on BotifyHost with Single-Instance Enforcement

BotifyHost's process supervisor automatically enforces strict single-instance isolation. When you deploy an update, the supervisor gracefully shuts down the prior container before starting the new one, completely preventing 409 Conflict errors.