https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/FIFO-queues-message-order.html https://docs.aws.amazon.com/AWSSimpleQueueService/late

https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/FIFO-queues-message-order.html https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQS... >The order in which messages are sent and received is strictly preserved and a message is delivered once and remains available until a consumer processes and deletes it. >In addition, FIFO queues support message groups that allow multiple ordered message groups within a single queue. There is no quota to the number of message groups within a FIFO queue.