a key component in the supply chain management. Production and transportation delays can lead to loss of the customers making them to shift to the competitor's products .This makes the company to incur massive losses. Another reason is the incompetent staffs, they thus fails to handle customers' expectations effectively. Employees should understand the supply chain of their company since supply chain keep on changing in terms of the processes and traditional roles. This therefore means the company should also incur extra cost since it will need to keep on training its employees which acts as constrain to integration of the full supply chain. Employees therefore should advice the customers effectively when making orders because any delay in the delivery of the products to the consumers may make them to opt to buy the products of the competitors. Sometimes customers increase, decrease or even cancel orders. Companies may get