Fanout Amazon SNS to Amazon SQS fair queues

I was extremely excited to hear about these new fair queues but sad that it does not have support in SNS. Without that it is useless to us. Please address this feature gap quickly. All that is needed is for MessageGroupId to be forwarded to the standard queues. The topic should ideally be standard as well, and it should accept a MessageGroupId even if it doesn't use it for anything other than propagation.

Since you are talking about queue fairs, I assume you are using SQS Standard queues. No, MessageGroupId is not propagated between SNS FIFO topics and SQS Standard queues. It is mentioned in the docs. See: Amazon SNS message grouping for FIFO topics :

When you publish messages to an Amazon SNS FIFO topic, you set the message group ID. The group ID is a mandatory token that specifies that a message belongs to a specific message group. The SNS FIFO topic passes the group ID to the subscribed Amazon SQS FIFO queues. There is no limit to the number of group IDs in SNS FIFO topics or SQS FIFO queues. Message group ID is not passed to Amazon SQS standard queues.

However, now with fair queues we have a valid use case to have the MessageGroupId propagated in this scenario. I will create the feature in the service roadmap.