Bot blocked by user · bot.blocked_by_user

Stable ID: bot.blocked_by_user · Evidence: source derived

The user has blocked the bot.

The response establishes the current rejection, not that access can never be restored.

When it matches

Every field in a rule must match. Alternative rules are joined with OR. Codes below are JSON response fields, not inferred HTTP statuses.

• JSON error_code: 403.

Exact description:

Forbidden: bot was blocked by the user

See matching rules for parameter precedence and unknown or ambiguous results.

Illustrative methods: sendMessage.

Possible causes

• The recipient has blocked the bot.

Before deciding what to do

Application decision: suspend sends until access changes. Repeat request: after access change.

• Use application policy to track reachability and resume only when there is evidence that access changed.

These are application choices. Errorgram does not retry, suppress the error, or change bot state.

Facts

This condition adds no extracted facts; result.facts is empty.

Example

Synthetic examples derived from the cited source.

API method: sendMessage.

{
  "ok": false,
  "error_code": 403,
  "description": "Forbidden: bot was blocked by the user"
}

Python

from errorgram import classify

response = {
    "ok": False,
    "error_code": 403,
    "description": "Forbidden: bot was blocked by the user",
}
result = classify(response, method='sendMessage')

assert result.id == 'bot.blocked_by_user'
print(result.entry["summary"])

JavaScript and TypeScript

import { classify } from "errorgram";

const response = {
  "ok": false,
  "error_code": 403,
  "description": "Forbidden: bot was blocked by the user"
};
const result = classify(response, { method: "sendMessage" });

if (result.status === "matched" && result.id === "bot.blocked_by_user") {
  console.log(result.entry.summary);
}

Framework names

Integration	Type or ID
Python	errorgram.BotBlockedByUser
aiogram	errorgram.aiogram.BotBlockedByUser extends TelegramForbiddenError
grammY	EnrichedGrammyError with classification.id equal to bot.blocked_by_user

Enrichment is explicit and keeps framework catch compatibility. Follow the Python and aiogram guide or JavaScript, TypeScript, and grammY guide.

Evidence

• Bot API 10.3 · telegram-bot-api/Client.cpp:127–129. USER_IS_BLOCKED changes both the code (to 403) and the description. Revision e3e9dd8e5b3d7ab8537cd5a10dc31d5ffa8f82d1.

Source references identify the reviewed revision, not the first release that introduced this response.

Data and versions

Catalogue 0.1.0 · schema 1.0.0 · reviewed 2026-09-15.

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