This may already be in the works, but the ability to disable and enable specific sales channels/fulfillment channels at will without having to delete entire connections.

Use Case: I have an Amazon FBM connection currently that is erroring out invalid orders that we do not want to import anyway, but customer is not ready to go-live with FBM just yet. Ideally I just want to disable this sales channel so I do not have to re-integrate it.