Much like the problem analyzers for metadata deployments in Gearset, it would be great if you could add a problem analysis feature for data deployments after having configured what you want to deploy.

Some scenarios will almost certainly cause the data deployment to either totally fail or only partially deploy some of the records and skip records it can't deploy. Providing automatic fixes (e.g. choosing not to include duplicates) would improve the number of deployments that work 100% of the time.