Usage & Rate Limits

Limit Create Shipment

1. Limit access frequency: Limit the access frequency based on the access account (carrierid). The maximum number of requests per access account per second can be seen in the table below.
2. Quantity limit: The maximum number of requests that can be sent per request can be seen in the table below.

Country	Carrier	Rate Limit (per minute)	Quantity limit (per request)
GB	WHISTL	180	99
GB	Evri（Hermes）	300	100
GB	DPD_UK	60	1
DE	GLS	600	100
DE	GEL	600	100
DE	DPD_DE	60（Requests need to be evenly distributed every second）	100
US	Fedex	2400	30
US	UPS	300	200
US	AMAZON	300	1

Notes:

1. If the request rate exceeds the logistics center limit, an error message is returned with error code 429 Too Many Requests. Error message: The request was not accepted because the application has exceeded the rate limit.
2. The Quantity of Request exceeds the limit, and an error message is returned with the error code: 429 Too Many Requests.Error message: The request was not accepted because the application has exceeded per request limit.
3. In the case of rate limit, the entire request will response an error. Wait at least one second before sending the request.
4. Important Note: Amazon's rate limiting rules are measured in seconds. AMAZON rate limit is 5 TPS.