> ## Documentation Index
> Fetch the complete documentation index at: https://codebeans-cb-checkout-rules.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Missing Apartment, Suite, etc.

> Require an apartment, suite or unit number in Address line 2.

Use this rule when you ship mainly to apartments or offices, and parcels go missing without a unit number. It blocks checkout when **Address line 2** is empty or doesn't contain at least one digit.

## What it checks

| Address line 2 | Result |
| - | - |
| `Apt 4B` | Allowed |
| `Suite 210` | Allowed |
| `Apartment` | Blocked |
| *(empty)* | Blocked |

The message appears next to **Address line 2** of the address that has the problem.

> [!WARNING]
>
> This rule blocks every address without a number in Address line 2, including houses that don't have one. Use **Specific countries** or a [custom rule](https://codebeans-cb-checkout-rules.mintlify.site/custom-rules/overview.md) if only some of your customers need it.

## Settings

| Setting | Description |
| - | - |
| Countries | **All countries**, or only orders shipped to **Specific countries**. |
| Validate in | **Shipping address**, **Billing address**, or both. |
| Message to display | What the customer sees. English is required. |
| Rule status | Active, Testing or Deactivated. See [Rule status and testing](https://codebeans-cb-checkout-rules.mintlify.site/rules/rule-status-and-testing.md). |
| Checkout behavior | See [Common rule settings](https://codebeans-cb-checkout-rules.mintlify.site/rules/common-settings.md#checkout-behavior). |

## Example message

```text theme={null}
Please add your apartment, suite or unit number in Address line 2.
```


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