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

# is_tester

> Check if a customer account is marked as a test account for development purposes.

## Syntax

<Tabs>
  <Tab title="Liquid">
    ```liquid theme={null}
    customer.metafields.lantern.is_tester
    ```
  </Tab>
</Tabs>

## Description

The `is_tester` metafield indicates whether a customer account is flagged as a test account. This is primarily used during development and testing phases to identify accounts that should be excluded from analytics, email campaigns, or production metrics.

## Properties

**Type:** `Boolean`
**Namespace:** `lantern`

## Return Values

| Scenario                      | Value   | Type    |
| ----------------------------- | ------- | ------- |
| Account is marked as test     | `true`  | Boolean |
| Account is not a test account | `false` | Boolean |
| Status not set                | `null`  | null    |
| Logged out                    | `null`  | null    |

## Examples

### Basic Test Account Check

```liquid theme={null}
{% assign is_tester = customer.metafields.lantern.is_tester %}
{% if is_tester %}
  <div class="test-account-banner">
    <strong>⚠️ Test Account</strong>
    <p>This is a development test account</p>
  </div>
{% endif %}
```