1. Collecting problems: collecting problems encountered by customers and sales teams in the sales process.
2. Analyze the problem: analyze the collected problems and find out the root of the problem.
3. Formulate solutions: formulate corresponding solutions according to the results of problem analysis.
4. Implement solutions: implement the formulated solutions, and monitor and adjust the implementation results.
5. Summary and evaluation: summarize and evaluate the whole problem-solving process, find out the shortcomings and make continuous improvement.