Final answer:
In Scrum, customer requirements are stored in the Product Backlog, which is a prioritized list of work for the development team managed by the Product Owner.
Step-by-step explanation:
The customer requirements in the context of Scrum, an Agile framework for completing complex projects, are primarily stored in the Product Backlog. The Product Backlog is a dynamic list of features, enhancements, and fixes that serves as the authoritative source for all the work that the Scrum Team might undertake. It is composed of Product Backlog Items (PBIs) which may include user stories, bugs, technical tasks, and other requirements. These items are prioritized based on their value, risk, priority, and necessity by the Product Owner, who is responsible for managing the Product Backlog. It is important to note that the Product Backlog is continuously updated and refined during the project.