Shopee needs to use Partner Cloud to check items in the following circumstances:

1. After-sales service needs: When Shopee sellers or buyers need to check after-sales issues, they can use Partner Cloud to check items. For example, when a buyer receives a damaged or unexpected product, he or she can initiate an after-sales application and track and handle it through the Partner Cloud system.

2. Work order management: When a company needs to handle a large number of after-sales issues, Partner Cloud can be used for work order management. The system automatically generates work orders and handles them according to business processes, which helps improve work efficiency and customer satisfaction.

3. Cross-departmental collaboration: When dealing with after-sales issues, it involves collaborative work between multiple departments. Partner Cloud can help departments share information to ensure that problems are solved in a timely and effective manner.

4. Data analysis and optimization: Through Partner Cloud, Shopee can collect and analyze data on after-sales issues to gain a deeper understanding of customer needs and satisfaction. In addition, data analysis can be used to identify potential problems and improvement points, thereby optimizing business processes and improving customer experience.

5. System integration and automation: Partner Cloud can be integrated with other systems (such as CRM, ERP, etc.) to achieve automatic data synchronization and automation of work order processing. This helps to reduce manual operation errors and improve overall operational efficiency.

6. Customer care: Through Partner Cloud, Shopee can follow up and respond to customers' after-sales issues in a timely manner, demonstrating a good after-sales service image. In addition, caring emails or text messages can be sent to customers through the system to improve customer satisfaction and loyalty.

In summary, Shopee can use Partner Cloud for item tracking when it needs to handle a large number of after-sales issues, work order management, cross-departmental collaboration, data analysis and optimization, system integration and automation, and customer care. This will help improve work efficiency, improve customer experience, and reduce customer churn.