The terms Pull System and Push System are primarily found in logistics. They represent two strategies for how products or services are delivered to a market. Both pull and push have their place. In a push system, the supplier pushes the product into the market to offload it. In a pull system, the customer pulls the product from the supplier.Pull systems are also referred to as the supermarket principle. The consumer and supplier are decoupled, meaning they operate in two different cycles. When implementing pull systems, it is often challenging to accurately determine true customer demand. This issue, or incorrect calculations, causes companies to struggle with their inventory strategies for years.The question of what to stock in inventory depends on factors such as lead time, customer deadlines and quality fluctuations. The choice of inventory strategy is often determined empirically. We recommend running a small simulation based on your historical data beforehand.