The account is a registered user of Alibaba Cloud and it represents as an
Alibaba Cloud Account ID in MNS.
An account creates a queue by using the CreateQueue interface. The account is the owner of the queue and has permissions of all the operations for the queue. You could get the
Alibaba Cloud Account ID of the queue owner from the User Center at the website of Alibaba Cloud.
Producer: the one who sends messages to MNS.
Consumer: the one who receives messages from MNS.