> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cowboy.inc/llms.txt
> Use this file to discover all available pages before exploring further.

# E1741 — CBSS: tlock request already registered

> CBSS: tlock request already registered

# E1741 — CBSS: tlock request already registered

| Property | Value |
| - | - |
| **Code** | `1741` |
| **Slug** | `E1741` |
| **Category** | `cbss` (CBSS) |
| **CIP** | CIP-24 §3.4.6 |

## What happened

Cbss: tlock request already registered.

This is the receipt's `what` text, produced by the node's `ExecutionError::TlockAlreadyRegistered`.

## Why it happened

The node rejected the operation with `E1741` (category `cbss`, CBSS). The receipt's `why` field carries the specific cause and `context` carries structured details, when the emitter attaches any.

The normative rule is in CIP-24 §3.4.6.

## How to fix

A tlock request already exists for this (scope, tag, target\_height) — reuse it rather than re-registering.

## Receipt example

```json theme={null}
{
  "code": 1741,
  "slug": "E1741",
  "category": "cbss",
  "what": "cbss: tlock request already registered",
  "fix": "A tlock request already exists for this (scope, tag, target_height) — reuse it rather than re-registering.",
  "docs_url": "https://docs.cowboy.inc/errors/E1741"
}
```

***

> [card] [All Error Codes](https://docs.cowboy.inc/errors/overview.md)
>
> View the complete error code reference


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.