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Errorgram

Message forward not found · message.forward_not_found

Stable ID: message.forward_not_found · Evidence: source derived

The message to forward could not be resolved.

The response does not distinguish a deleted message from an incorrect identifier, missing access or a masked lookup error.

When it matches

Section titled “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: 400.

Exact description:

Bad Request: message to forward not found

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

Illustrative methods: forwardMessage, forwardMessages.

Possible causes

Section titled “Possible causes”
  • The message identifier is missing or nonpositive.
  • The bot cannot access messages in the chat.
  • A message lookup failed and its original error was replaced.

Before deciding what to do

Section titled “Before deciding what to do”

Application decision: inspect message target and access. Repeat request: after relevant change.

  • Check the chat and message identifiers together, then confirm the bot can access the target message.

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

Facts

Section titled “Facts”

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

Example

Section titled “Example”

Synthetic examples derived from the cited source.

API method: forwardMessage.

{
  "ok": false,
  "error_code": 400,
  "description": "Bad Request: message to forward not found"
}

Python

Section titled “Python”
from errorgram import classify


response = {
    "ok": False,
    "error_code": 400,
    "description": "Bad Request: message to forward not found",
}
result = classify(response, method='forwardMessage')


assert result.id == 'message.forward_not_found'
print(result.entry["summary"])

JavaScript and TypeScript

Section titled “JavaScript and TypeScript”
import { classify } from "errorgram";


const response = {
  "ok": false,
  "error_code": 400,
  "description": "Bad Request: message to forward not found"
};
const result = classify(response, { method: "forwardMessage" });


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

Framework names

Section titled “Framework names”
Integration Type or ID
Python errorgram.MessageForwardNotFound
aiogram errorgram.aiogram.MessageForwardNotFound extends TelegramBadRequest
grammY EnrichedGrammyError with classification.id equal to message.forward_not_found

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

Evidence

Section titled “Evidence”

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

Data and versions

Section titled “Data and versions”

Catalogue 0.1.0 · schema 1.0.0 · reviewed 2026-09-16.

Markdown · Condition JSON · Full catalogue and sources · JSON Schema