How does Walmart use VeChain?

Could you elaborate on how Walmart incorporates VeChain into its operations? Specifically, what benefits does this partnership offer Walmart in terms of supply chain management, product traceability, and enhancing consumer trust? Are there any notable success stories or case studies that demonstrate the effectiveness of this collaboration? Furthermore, how does VeChain's blockchain technology contribute to Walmart's overall business strategy and what are the long-term goals of this partnership?