Telegram Errors

Telegram returns errors as HTTP codes, like any API. In Chatterfy , this appears as sending failures in (chat status Error ), and in the logs of the specific bot. The most common codes are 400 (PEER_F

Updated September 25, 20264 min

Telegram returns errors as HTTP codes, like any API. In Chatterfy, this appears as sending failures in Messenger(chat status Error), and in the logs of the specific bot. The most common codes are 400 (PEER_FLOOD when there is a spam block, a long caption, invalid parameters) and 403 (Forbidden due to the conversation window or a deactivated lead). This section is for quick orientation: what it means, whether it can be fixed, and which settings can reduce its share.

Telegram errors do not depend on Chatterfy—these are the rules of the Telegram platform itself, common to all bots. They cannot be eliminated completely. The better approach is to configure the funnel so that each type of error occurs rarely (see the recommendations in each article).

One HTTP code — several different causes

Code 400 means “Bad Request,” but Telegram uses it for spam blocks, long text, and invalid parameters. The exact message after the code is more important than the code itself. Always look at the full text: Bad Request: PEER_FLOOD and Bad Request: caption is too long—both are 400, but they are resolved in different ways. Same with 403: Forbidden: Bot can't initiate—the conversation window is closed. Forbidden: user is deactivated—the lead deleted their Telegram account. They have nothing in common.

What is covered

Two HTTP codes, with an analysis of all common message variants. Click a card or read the short description below:

Error 400 — Telegram

Error code 400 from Telegram occurs in two typical cases: an account spam block (PEER_FLOOD) and exceeding the media caption length limit (caption is too long). These are different errors with the sam

Error 403 — Telegram

Error code 403 from Telegram means that Telegram does not allow the bot to perform the action. It happens in two common cases: the bot tries to message first in a private chat without an active sessio

— Error 400 — Telegram—PEER_FLOOD (spam block of the account or bot — the most common case), caption is too long (media caption length exceeded: the Telegram limit is 1024 characters), invalid parameters in an API call. The article covers how to restore an account after a spam block, how to split a long caption into separate messages, and how to avoid this in the funnel.

— Error 403 — Telegram—Bot can't initiate conversation (the 5-minute response window has expired or there are no incoming messages from the lead) and user is deactivated (the recipient’s account was deleted or blocked by the lead). The article covers how to open the conversation window through an inline button and how to guide the lead so the window does not close.

Where errors are visible in `Chatterfy`

When Telegram returns an error, Chatterfy records it in three places at once:

—The chat in Messenger gets the Error status (see Chat Status — conversation statuses). The red background shows that something was not sent. Click the chat to see the error text from Telegram directly under the last message.

—Bot logs—in General — basic bot settings(the Logs section for a specific bot)—a list of all Telegram errors with the time and message variant. Useful for counting “how many 403s per day” and for analysis.

—Analytics—in Chats — conversation analyticsyou can see the share of chats with the Error status out of the total volume. If the share is growing, it is time to adjust Delays — bot delaysor change the bot type.