patch
https://api.business.amazon.com/cart/2025-04-30/carts//items
Modifies items in the cart.
Usage Plan:
| Rate (requests per second) | Burst |
|---|---|
| 2 | 2 |
The x-amzn-RateLimit-Limit response header returns the usage plan rate limits that were applied to the requested operation. The preceding table indicates the default rate and burst values for this operation. For questions about your usage plan, reach out to your Amazon Business technical contact.
regionmust be set toUS. Selecting any other region will return an error.
To test this API, populate the input fields below with values from the following sample.
Example #1 - Click to expand
PATCH https://api.business.amazon.com/cart/2025-04-30/carts/cart-123/items?region=US { "items": [ { "itemId": "cId1", "quantity": 3 } ] }