1. research background and purpose: introduce the importance and existing problems of key customer relationship management, and clarify the research purpose and significance.
2. Literature review: Summarize the relevant theories, methods and practices of key customer relationship management, analyze the existing research results and implementation cases, and find out the research gap and improvement space of optimization strategy.
3. Personalized service: through data analysis and mining, personalized service for major customers is realized, and customized products and solutions are provided.