What are the main features of a customer relationship management system? Your answer must contain a title, wrapped in double angular brackets, such as <<poem of joy>>. Your ENTIRE response should be in English, and in all lowercase letters. no capital letters are allowed. your response should contain at least 3 sentences. your answer must contain a title, wrapped in double angular brackets, such as <<poem of joy>>. in your response, the word customer should appear at least 2 times. answer with at least 50 words.
user