 In saying this, touch-points influence the pre-purchase, purchase and post-purchase stages of the decision making process.This is because they are constantly in contact with the consumer by way of consumer experiences with a brand or service, advertising (all forms), contact with employees, social media and many other ways.Each stage of the decision making process is also an opportunity for the brand to influence the consumer's decisions, regardless of whether or not the consumer has made a decision to purchase.