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updatedAt: 2026-08-03T20:06:30.000Z
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# Sandbox throttling limits

 <div class="amber-callout" aria-label="Migration notice"><p><strong>Migrate to Global APIs:</strong> New sellers and approved Solution Providers should use Global APIs. Existing users must migrate to avoid disruption and access new capabilities coming to your market. Explore <a href ="https://developer.walmart.com/global-marketplace/docs/global-marketplace-apis" style="text-decoration: underline !important; font-weight: 700;">Global Marketplace migration resources</a>.</p></div> 

The Walmart sandbox sets throttling limits on Marketplace API calls. Exceeding these limits returns a `429 Too Many Requests` error. If you encounter an error, contact Walmart Partner Support.

Refer to the table to prevent errors caused by exceeding throttling limits.

| Feed type       | Max requests per hour | Max file size per call | Processing time per request |
| --------------- | --------------------- | ---------------------- | :-------------------------- |
| Items           | 30 per hour           | 100 KB                 | 30 mins                     |
| Prices          | 30 per hour           | 5 KB                   | 30 mins                     |
| Promotion       | 30 per hour           | 25 KB                  | 30 mins                     |
| Inventory       | 30 per hour           | 2 KB                   | 30 mins                     |
| Lag Time        | 30 per hour           | 2 KB                   | 30 mins                     |
| Returns/Refunds | 30 per hour           | 2 KB                   | 30 mins                     |