{
  "id": "updates.webhook_active",
  "category": "update_delivery_configuration",
  "summary": "Polling was requested while a webhook is active or being configured.",
  "match_any": [
    {
      "error_code": 409,
      "description_exact": "Conflict: can't use getUpdates method while webhook is active; use deleteWebhook to delete the webhook first"
    }
  ],
  "scope": {
    "method_examples": [
      "getUpdates"
    ],
    "exhaustive": false
  },
  "possible_causes": [
    "The bot has an active or pending webhook configuration."
  ],
  "diagnostic_limits": "This is a different condition from two simultaneous getUpdates requests.",
  "evidence": [
    {
      "source": "server-10.3",
      "path": "telegram-bot-api/Client.cpp",
      "lines": [
        16926,
        16931
      ],
      "note": "Checks configured and pending webhook state before polling."
    }
  ],
  "example": {
    "method": "getUpdates",
    "response": {
      "ok": false,
      "error_code": 409,
      "description": "Conflict: can't use getUpdates method while webhook is active; use deleteWebhook to delete the webhook first"
    }
  },
  "evidence_level": "source_derived",
  "guidance": {
    "action": "choose_update_delivery_mode",
    "repeat_request": "after_configuration_change",
    "preconditions": [
      "If polling is intended, remove the webhook deliberately; if webhooks are intended, stop polling."
    ]
  }
}