Attribution reports
Walmart Sales Rewards and Attribution APIs enable programmatic access to affiliate campaign performance data for offsite traffic driven to Walmart.com. It is designed for sellers and platforms that manage marketing through automated or API-driven workflows and need scalable, reliable attribution and reporting.
This API extends the Sales Rewards experience beyond Seller Center by allowing you to retrieve performance metrics directly into your systems, dashboards, and optimization pipelines. It supports both aggregated campaign insights and detailed, item-level attribution data within a specified date range.
Prerequisites
Before using the Walmart Marketplace APIs, ensure that you have:
- Seller or approved solution provider access to Walmart Marketplace APIs
- Retrieve API keys (clientId and clientSecret) from the Developer Portal and use the keys to call Marketplace APIs.
- OAuth 2.0 authentication is required to access the Walmart Marketplace APIs. Ensure that you have obtained the necessary credentials and tokens before making API requests. For more information, refer to OAuth 2.0 authorization.
Market availability
The Walmart Seller Performance API is available for sellers listing in the US marketplace.
Key benefits
The Walmart Sales Rewards and Attribution API helps you scale and automate offsite performance marketing by providing direct access to attribution and performance data.
With this API you can:
- Retrieve performance analytics for affiliate campaigns, including clicks, impressions, orders, GMV, conversions, and revenue
- Analyze performance at different aggregation levels, such as campaign, ad group, or creative/link
- Access item-level attribution data to understand which products are driving offsite revenue
- Filter results by campaign, ad group, creative, or item to support targeted analysis
- Automate reporting and integrate attribution data into existing marketing and analytics tools
Key data considerations
- Reporting data is available for up to the last 12 months
- Each request supports a maximum date range of 90 days
- Attribution metrics are based on Walmart’s defined attribution model and lookback windows (for example, last-touch 14-day)
Related links
Updated about 5 hours ago