Amazon Best practice: Error Request is throttled

The number of requests for each process, such as order import, stock synchronisation, shipping confirmations etc., is limited by Amazon (Maximum Request Quota). If the maximum number of requests is exceeded, the process is blocked and further requests are rejected by Amazon. After a while, new capacities are unlocked a bit at a time (The Leaky Bucket Algorithm), and data transfer is enabled once again.

For further information, refer to Throttling: Limits to how often you can submit requests.

If you use a European or North American marketplace account at Amazon, this error often occurs because a configuration in PlentyONE results in too many requests being sent to this Amazon account at once.

Background: In the Setup » Markets » Amazon » Settings menu, several Amazon accounts were linked to different platforms. However, those platforms all "access" the same European or North American marketplace account. The accounts always have the same merchant ID. Various processes were activated in one/some of these accounts.

Amazon platforms which are usually summarised in one European marketplace account (as of 3 March 2021):

Amazon platforms which are usually summarised in one North American marketplace account (as of 1 January 2021):

If you use a European or North American Amazon marketplace account, it is useful to activate the processes only for one marketplace account in the Setup » Markets » Amazon » Settings menu. Otherwise, the data traffic of those processes will be transferred for every single Amazon account with the same merchant ID.

P.S.: An Amazon.com account does not belong to a European marketplace account.