Throttling

The API throttling level has been set for each Partner per API. If you try to exceed the limits, your API calls will be returned with an error: 429, “Too Many Requests”.

The following table represents the default throttling limits. If you find that you are exceeding the levels listed in the following, review your algorithms and optimize for fewer calls. If you still encounter errors, contact Partner Support and request a higher throttling threshold.

API throttling limits

Feed Type	HTTP Method	Max Requests	Max File Size per Call	Processing Time per Request
Items	POST Bulk Create / Update Items	10 per hour	25MB	4 hours
Prices	POST Bulk Price Update	10 per hour	10MB	30 mins
Promotion	POST Bulk Promo Update	6 per day	10MB	30 mins
Inventory	POST Bulk Inventory Update	10 per hour	5MB	30 mins

Scenarios where to use feed APIs / bulk update APIs vs non-feed APIs

The previous APIs are feed/bulk update APIs that are used to perform updates and tasks on a day-to-day basis, such as Bulk Item Inventory Update, Bulk Item Setup (Multiple). For these APIs, sellers have to submit the feed files as part of the feed API call and check the progress using feed status API (Marketplace Seller Feed item status API link).

Usage of other non-feed APIs, such as the Update inventory API, should be in exception scenarios only. These are primarily designed for emergency usage and are highly throttled.