Sponsored Brand Campaigns in the 'legacy' format, created before Amazon allowed ad groups, may seem a bit like using an old-school flip phone in a world of smartphones. Amazon sets some limitations on these campaigns, and unfortunately, Ad Badger can't work its magic to the fullest in this scenario (we wish we could optimize everything!). Our top recommendation is to give your campaigns a fresh update to unlock all the exciting new features Amazon has to offer. It's like giving your advertising strategy a much-needed upgrade!