Upon completing chapter $3$ readings, discuss and explain the concept of customer engagement and how technology has impacted the manner in which salespeople interact with customers. Furthermore, as outlined in chapter $3$ readings, when customers are engaging in personal buying experiences to increase relationship, it is concluded that all purchases are not the same. Owing to this fact, list the three $(3)$ purchase types, and discuss how each purchase type may impact the buying team and the decision$-$making process. Please make sure to apply the appropriate professional selling concepts learned in chapter $3$ in explaining this topic question.