> ## Documentation Index
> Fetch the complete documentation index at: https://docs.gu1.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Update mapping

> Update an existing batch-import column mapping — via the gu1 batch import API for high-volume data loading, with examples for update mapping use cases.

## Endpoint

```
PATCH https://api.gu1.ai/batch-import/mappings/{id}
```

## Overview

Partial update. Response **`{ mapping: { ... } }`** or **404** if not found.

## Authentication

```bash theme={null}
Authorization: Bearer YOUR_API_KEY
Content-Type: application/json
```

## Request Body

Any of: `name`, `target`, `columnMapping`, `defaultFields`, `headersSnapshot`.

## Path Parameters

| Parameter | Description  |
| --------- | ------------ |
| `id`      | Mapping UUID |

See also: [Bulk imports overview](/en/api-reference/bulk-imports/overview).