sendMessage succeeds but messages are not delivered — Debug Tool
Infrastructure entry for diagnosing Telegram Bot message delivery issues.
Symptoms
- API returns OK
- No message appears in chat
- Works in some chats but not others
Checklist
- Confirm chat_id is correct and current.
- Confirm the bot is allowed to message the chat (permissions / group admin rules).
- Confirm you are not hitting rate limits.
- Confirm the user has not blocked the bot.
Common causes
- Using a stale chat_id
- Bot not in group / not admin where required
- User privacy settings / bot blocked
- Flood limits / throttling
Verdict
- Responsibility Check)
- Archived decision page: sendMessage no delivery)