No, SMQ does not support the first-in, first-out (FIFO) method across queues. This topic describes how to ensure the order of messages in Simple Message Queue (formerly MNS).
SMQ does not guarantee the order in which messages are consumed due to the data striping feature. If your business requires a strict message consumption order, add the SeqId parameter when you send messages in SMQ. Then, the messages can be sorted at consumer clients. For more information, see Ensure the ordering of queue messages.