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

# test-key-not-allowed

> A test key may not use this field group.

**Status 403.** A test key may not use this field group.

The response is `application/problem+json`, and its `type` is
`https://docs.andteam.com/api/problems/test-key-not-allowed`:

```json theme={null}
{
  "type": "https://docs.andteam.com/api/problems/test-key-not-allowed",
  "title": "A test key may not use this field group",
  "status": 403
}
```

## What it means

A sandbox's `atk_test_` key never reads special categories, pay, documents or performance.

## What to do

Test those groups with a live key in a production tenant, once its approver has approved them. See [The sandbox](https://docs.andteam.com/concepts/sandbox.md).

See [Errors](https://docs.andteam.com/errors.md) for every type.


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