> For the complete documentation index, see [llms.txt](https://resources.atriptech.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://resources.atriptech.com/api-document/support-and-reference/integration-reference.md).

# Reference data & sandbox

{% hint style="info" %}
💬 **Need help?** If you're stuck, ask Eva in the Help Center for instant diagnostics.

<a href="https://www.atriptech.com/" class="button primary" data-icon="comments">Ask Eva</a>
{% endhint %}

Use this section for shared reference data and sandbox test inputs used across Atlas API flows.

Start here when you need to:

* find a shared value or enumeration used across workflows
* check published sandbox test inputs
* confirm supporting data before building or troubleshooting a request

### FAQ

#### What belongs in this section?

This section holds shared reference values, airline-specific supporting data, and published sandbox test inputs reused across Atlas API workflows.

#### When should I use this section instead of API Reference?

Use this section for shared values and test inputs.

Use [API Reference](/api-document/api-reference.md) for exact endpoint fields, schemas, and samples.

### Pages in this section

* [Reference Data](/api-document/support-and-reference/integration-reference/reference-data.md)
* [Sandbox Test Data](/api-document/support-and-reference/integration-reference/sandbox-test-data.md)

### What this section covers

* Shared reference values
* Airline-specific enumerations
* Sandbox test inputs
* Supporting integration data

### Use this when you need

* A supported request value
* A reference list reused across flows
* Published sandbox test inputs
* Airline-specific supporting data

### What comes next?

After you find the required value or test input, return to the workflow or endpoint page you are implementing.

### Related sections

* [Integration Guides](/api-document/readme-1.md)
* [API Reference](/api-document/api-reference.md)
* [Troubleshooting & Support](/api-document/support-and-reference/troubleshooting-and-support.md)