# Common Headers

All requests to the EBP REST API must include the following common headers to ensure proper authentication, request integrity, and system compatibility.

## Common Headers Specification

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### EBP Issued Information Guide

> [!NOTE] **Required Pre-issued Information**
> The following items among the common headers must be issued by the EBP system in advance before calling the API.
> 1. **X-Access-Key**: Unique authentication key for system access
> 2. **X-Division-Code**: Business division code
> 3. **X-Store-Id**: Store ID
> 4. **X-Channel-Code**: Channel code (System classification code)
> 5. **Hash Key**: A secret key used to generate the `X-EBP-Signature` (Not included in header, used for hashing)

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**Inquiries:** [ebp-server@lge.com](mailto:ebp-server@lge.com)