When using certain APIs in the European region and specifying a MarketplaceId, it still returns data for the entire European market. For instance, when trying to retrieve shipment information for Germany, I also receive information for the United Kingdom.
server = FulfillmentInbound(credentials=credentials, marketplace=Marketplaces.DE)
res = server.get_shipments(MarketplaceId='A1PA6795UKMFR9', QueryType='SHIPMENT',ShipmentStatusList='CLOSED')