> ## Documentation Index
> Fetch the complete documentation index at: https://developers.criteo.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Sponsored Products Campaigns

## Introduction

Sponsored Products Campaigns allow advertisers to organize and manage product-based advertising across retailer inventory.

Campaigns define the high-level structure for Sponsored Products advertising and act as containers for line items.

### Business Context

Sponsored Products campaigns operate on an open auction model using cost-per-click (CPC) bidding. Advertisers participate in the auction by specifying the maximum amount they are willing to pay when a shopper clicks on their ad.

### Key Concepts

* Each campaign consists of one or several line items
* Ads can only run after creating a campaign and at least one line item
* Campaigns may contain line items across multiple retailers
* Budgets may be controlled at both the campaign and line item levels

<Info>
  **Important** A campaign requires at least one active line item to serve ads.
</Info>

***

## Relationship with Line Items

Line items define how ads are delivered within a campaign.

Within a line item, advertisers configure:

* Product selection
* Targeting (such as keywords)
* Bidding strategy
* Delivery settings

***

## Quick Start

1. Create a campaign

2. Create a line item

3. Configure products, targeting, and bidding

4. Activate your line item

## What's next

* [Line Items](/retail-media/v2026-preview/docs/line-items)
* [Onsite Display Line Items](/retail-media/v2026-preview/docs/onsite-display-line-items)
* [Sponsored Products Line Items](/retail-media/v2026-preview/docs/onsite-sponsored-products)