> For the complete documentation index, see [llms.txt](https://help.citrusad.com/retail-media-interface/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.citrusad.com/retail-media-interface/integration/data-api.md).

# Data & API

- [API overview](https://help.citrusad.com/retail-media-interface/integration/data-api/api-overview.md)
- [Ad Integration Workflow Options for Retailers](https://help.citrusad.com/retail-media-interface/integration/data-api/api-overview/integration-workflow-options-1.md)
- [Before you start](https://help.citrusad.com/retail-media-interface/integration/data-api/api-overview/before-you-start.md)
- [HTTP persistence & endpoints](https://help.citrusad.com/retail-media-interface/integration/data-api/api-overview/http-persistence-ad-caching-endpoints-1.md)
- [Reporting Impressions and Clicks](https://help.citrusad.com/retail-media-interface/integration/data-api/api-overview/reporting-impressions-clicks.md): This document explains how to report impressions and clicks using Epsilon Retail Media APIs, with steps for integration and improved ad ID validation.
- [Ad generation filtering](https://help.citrusad.com/retail-media-interface/integration/data-api/api-overview/ad-generation-filtering-1.md)
- [Timeouts and graceful fallback behaviour](https://help.citrusad.com/retail-media-interface/integration/data-api/api-overview/timeouts-and-graceful-fallback-behaviour.md)
- [OAuth 2.0 Authentication](https://help.citrusad.com/retail-media-interface/integration/data-api/api-overview/oauth-20-authentication.md)
- [Ad Interaction Events Reporting](https://help.citrusad.com/retail-media-interface/integration/data-api/api-overview/ad-interaction-events-reporting.md)
- [Integrate Banner X Video Interaction Reporting](https://help.citrusad.com/retail-media-interface/integration/data-api/api-overview/ad-interaction-events-reporting/integrate-banner-x-video-interaction-reporting.md)
- [Integrate Banner X Shoppable Banner Interaction Reporting](https://help.citrusad.com/retail-media-interface/integration/data-api/api-overview/ad-interaction-events-reporting/integrate-banner-x-shoppable-banner-interaction-reporting.md)
- [Data overview](https://help.citrusad.com/retail-media-interface/integration/data-api/data-overview-1.md)
- [Sync data via file protocols](https://help.citrusad.com/retail-media-interface/integration/data-api/data-overview-1/syncing-data-via-file-protocols-1.md)
- [Catalog & Products](https://help.citrusad.com/retail-media-interface/integration/data-api/catalog-products-2.md)
- [Syncing catalog via API](https://help.citrusad.com/retail-media-interface/integration/data-api/catalog-products-2/syncing-catalog-via-api.md)
- [Syncing products via API](https://help.citrusad.com/retail-media-interface/integration/data-api/catalog-products-2/syncing-products-via-api.md)
- [Syncing catalog & products via file](https://help.citrusad.com/retail-media-interface/integration/data-api/catalog-products-2/syncing-catalog-products-via-file.md)
- [Audience Targeting](https://help.citrusad.com/retail-media-interface/integration/data-api/audience-targeting-new.md)
- [Option 1: Curated Unified Audiences](https://help.citrusad.com/retail-media-interface/integration/data-api/audience-targeting-new/option-1-curated-unified-audiences.md)
- [Option 2: Sync Customers & Audience](https://help.citrusad.com/retail-media-interface/integration/data-api/audience-targeting-new/integration-option-2-sync-customers-audience.md)
- [Option 3: Sync Audiences only](https://help.citrusad.com/retail-media-interface/integration/data-api/audience-targeting-new/integration-option-3-sync-audiences-only.md)
- [Order data](https://help.citrusad.com/retail-media-interface/integration/data-api/order-data-1.md)
- [Syncing order data via API](https://help.citrusad.com/retail-media-interface/integration/data-api/order-data-1/syncing-order-data-via-api.md)
- [Syncing order data via file](https://help.citrusad.com/retail-media-interface/integration/data-api/order-data-1/syncing-order-data-via-file.md)
- [Customer Data Sync for Audience Targeting](https://help.citrusad.com/retail-media-interface/integration/data-api/customer-data.md)
- [In-depth behaviour examples](https://help.citrusad.com/retail-media-interface/integration/data-api/customer-data/in-depth-behaviour-examples.md)
- [Syncing customer data via API](https://help.citrusad.com/retail-media-interface/integration/data-api/customer-data/syncing-customer-data-via-api-1.md)


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