Does DMS Support FIFO Delivery?

Yes. When creating a queue, you can select Standard and then Global FIFO. In a global FIFO queue, messages are retrieved in the order they were sent. Global FIFO queues are applicable to scenarios where the order of messages is important. In a partition-level FIFO queue, messages might be retrieved in an order different from which they were sent. Partition-level FIFO queues are applicable to scenarios where high concurrency is important.