Answer:
1.To promote goodwill
2.To inform
3.To persuade and
4.To build your network
Explanation:
A primary purpose of sending message is to promote goodwill of a business, build your network by sending messages, the potential customers will get in touch with the business. The messages are also send to inform the customers with the latest products and or services which they might find useful. and to persuade them to purchase the products and or services by sending messages in a way to convince the customers.