Visibility, Traceability, Data management, and Supplier relations used to be the biggest challenges facing supply chain professionals. However, over the last 15 months, uncontrollable factors like COVID-19 have merged with technological evolutions to create a number of new supply chain dynamics. In this context please answer the following questions:

1. Discuss the relationship between service level, uncertainty, safety stock, and order quantity. How can trade-offs between these elements be made

2. Discuss and the role warehouses play in your logistics in the context of the growth of e-commerce and digital transformation.