Amazon's featured offer (buy box) eligibility requirements were updated in a policy change that removed prior parity between FBA and FBM offers. Under the revised rules, FBA sellers are favored for winning the featured offer/buy box, independent of whether the seller is a brand owner, wholesaler, or reseller.
Apply: Send inventory to FBA rather than FBM specifically to improve buy box win rate under the current eligibility rules, as part of the broader case laid out in FBA vs. FBM (Fulfillment Model Split). This sits alongside — but is distinct from — the Prime Badge Mobile Search Auto-Filter mechanism, which drives visibility rather than buy box allocation.