# Reference Data

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Use this section for stable reference data reused across integration flows.

### Pages in this section

* [Locale Reference](https://resources.atriptech.com/api-document/integration-reference/reference-data/locale)

### What this section covers

* Shared request values
* Airline-specific enumerations
* Supporting lookup data

### Use this when you need

* A supported request value
* A reference list reused across flows
* A lookup page used by multiple guides or APIs