Blockchain in ecommerce enhances security, transparency, and efficiency in transactions. By utilizing decentralized ledgers, blockchain ensures data integrity and reduces fraud risks. It can streamline payment processes, facilitate cross-border transactions, and offer secure digital identity management for users. Smart contracts automate processes like order fulfillment and dispute resolution, lowering operational costs. Blockchain also ensures provenance and authenticity of goods, improving trust between consumers and merchants. As eCommerce grows, blockchain offers the scalability needed for future digital retail innovation.