Any kind of service provided to the customers after they have purchased the product is termed as after-sales service. In some companies it is considered as a marketing strategy, it is provided by a retailer, manufacturer, or a third party customer service. After sales service usually consists of warranty facilities, training, repair, and other services. This system ensures that customers get maximum possible value out of their purchase, and also it creates brand loyalty as satisfied customers tend to purchase repeatedly. A good after sales support can bring positive feedback for the company reputation.