Customer service training courses and contents should include the following aspects:

1. product knowledge: customer service personnel need to have a deep understanding of the company's products, including product features, functions and usage methods. Only in this way can we better answer questions for customers and provide services.

2. Communication skills: Customer service personnel need to have good communication skills, including listening, expressing, explaining and guiding. Through training, the communication ability of customer service staff can be improved and they can communicate with customers better.

3. Service attitude: Customer service personnel need to have a good service attitude, including enthusiasm, patience, carefulness and courtesy. Through training, the service attitude of customer service staff can be improved and they can serve customers better.

4. Technical ability: Customer service personnel need to master certain technical ability, including computer operation, software use and network knowledge. Through training, the technical ability of customer service personnel can be improved and customer problems can be better handled.

5. Knowledge reserve: Customer service personnel need to have a certain knowledge reserve, including the company's organizational structure, business processes, customer needs, etc. Through training, improve the knowledge reserve of customer service personnel and let them serve customers better.

The specific content of customer service training can be adjusted and customized according to the actual situation of the company. Training can take many forms, including classroom training, online training and practical training. At the same time, the effect of training also needs to be evaluated and fed back, and the training content and methods should be adjusted in time to achieve the best results.