The terms Logistics and Supply Chain Management are used interchangeably these days, but there is a subtle difference that exists between the two.
Logistics is the set of activities ranging from procurement of raw materials, to the delivery of the final good to the end consumer. In a typical business scenario, many organizations work in tandem to get a product in hand of the consumer. The supply chain is a network of these organizations that coalesce with each other to make the process successful.