# GET List letter-part colour selections

Lists the letter type's materialised letter-part colour selections. A part the letter type lists in `letter_parts` but that has never been created is absent here rather than invented, so the list is what exists rather than what could exist. Requires `customisers:read`. The operation is read-only and always safe to retry.

- Source URL: https://www.signcustomiser.com/help/api/v3-get-list-letter-part-colour-selections/
- Markdown URL: https://www.signcustomiser.com/help/api/v3-get-list-letter-part-colour-selections.md
- Group: Customiser letter parts
- Method: GET
- Path: /api/v3/customisers/{customiser_id}/letter-types/{letter_type_id}/letter-parts
- Auth: Bearer token
- Required scopes: `customisers:read`

## Path parameters

- customiser_id (string, required): The customiser id. Example: 1
- letter_type_id (string, required): The letter type id. Example: 7

## cURL example

```bash
curl https://web.signcustomiser.com/api/v3/customisers/1/letter-types/7/letter-parts \
  --header 'Accept: application/json' \
  --header 'Authorization: Bearer YOUR_API_TOKEN'
```

## Response examples

### 200 GET 200 example 1

```json
{
  "data": [
    {
      "object": "letter_part_colour_selection",
      "customiser_id": 42,
      "letter_type_id": 7,
      "letter_part": "face",
      "name": null,
      "description": null,
      "optional": null,
      "optional_label": null,
      "optional_default_none": false,
      "lightsource": false,
      "custom_image": false,
      "show_default_upload_image": true,
      "show_in_text_editor": true,
      "text_enabled": false,
      "default_upload_image_url": null,
      "created_at": "2026-08-13T00:00:00Z",
      "updated_at": "2026-08-13T00:00:00Z"
    }
  ],
  "pagination": {
    "has_more": false,
    "next_cursor": null
  },
  "links": {
    "self": "https://web.signcustomiser.com/api/v3/customisers/42/letter-types/7/letter-parts",
    "documentation": "https://www.signcustomiser.com/help/api/",
    "next": null
  },
  "meta": {
    "api_version": "v3",
    "request_id": "req_01jz9x2k7c8f3m5n6p7q8r9s0t"
  }
}
```

### 401 Missing API key

```json
{
  "type": "https://www.signcustomiser.com/help/api/problems/missing_api_key",
  "title": "Missing API key",
  "status": 401,
  "code": "missing_api_key",
  "detail": "Provide a store API key as a bearer token.",
  "request_id": "req_01jz9x2k7c8f3m5n6p7q8r9s0t"
}
```

### 403 Insufficient scope

```json
{
  "type": "https://www.signcustomiser.com/help/api/problems/insufficient_scope",
  "title": "Insufficient scope",
  "status": 403,
  "code": "insufficient_scope",
  "detail": "This operation requires the customisers:read scope.",
  "required_scopes": [
    "customisers:read"
  ],
  "granted_scopes": [
    "store:read"
  ],
  "request_id": "req_01jz9x2k7c8f3m5n6p7q8r9s0t"
}
```

### 404 Unknown letter type

```json
{
  "type": "https://www.signcustomiser.com/help/api/problems/resource_not_found",
  "title": "Resource not found",
  "status": 404,
  "code": "resource_not_found",
  "detail": "The requested resource does not exist or does not belong to the authenticated store.",
  "request_id": "req_01jz9x2k7c8f3m5n6p7q8r9s0t"
}
```

### 422 Unknown parameter

```json
{
  "type": "https://www.signcustomiser.com/help/api/problems/unknown_parameter",
  "title": "Unknown query parameter",
  "status": 422,
  "code": "unknown_parameter",
  "detail": "This endpoint accepts no query parameters.",
  "request_id": "req_01jz9x2k7c8f3m5n6p7q8r9s0t"
}
```

### 429 Rate limited

```json
{
  "type": "https://www.signcustomiser.com/help/api/problems/rate_limited",
  "title": "Too many requests",
  "status": 429,
  "code": "rate_limited",
  "detail": "You have exceeded the request limit for this API key.",
  "retry_after": 60,
  "request_id": "req_01jz9x2k7c8f3m5n6p7q8r9s0t"
}
```