Which supply chain innovation did Walmart first patent in 2017 and begin implementing in 2021 to revolutionize how products move from distribution centers to stores?

The retail supply chain landscape has evolved dramatically in recent years with technological innovations addressing visibility, efficiency, and resilience challenges. New systems and approaches have emerged to help retailers maintain competitive advantage through supply chain excellence. Test your knowledge about one particularly transformative development that has changed how retailers manage inventory and fulfill customer expectations.

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Floating warehouse blimps that hover near urban centers
Blockchain-enabled product authentication system
MFCs (Micro-Fulfillment Centers) within existing retail locations
Autonomous underground delivery tunnels connecting warehouses to stores