# Implement shopping lists

Learn how commercetools can help you to create and manage shopping lists.

**Learning objectives**

After completing this module, you should be able to:

- Explain the purpose, core data structure, and key fields of commercetools Shopping Lists, distinguishing between Product line items and text line items.
- Create and query Shopping Lists for both identified customers and anonymous sessions using appropriate API endpoints, draft objects, and query parameters.
- Perform common update actions on Shopping Lists, such as adding or removing items and changing quantities, while correctly managing optimistic concurrency using list versions.
- Implement sharing functionality (for example, public registries) and lifecycle management for Shopping Lists using Custom Fields and relevant API update actions.

**Agenda**

1. [Understand the Shopping List API](/learning-implement-carts-and-shopping-lists/implement-shopping-lists/understand-the-shopping-list-api.md)
2. [Find and manage existing Shopping Lists](/learning-implement-carts-and-shopping-lists/implement-shopping-lists/find-and-manage-existing-shopping-lists.md)
3. [Create Shopping Lists](/learning-implement-carts-and-shopping-lists/implement-shopping-lists/create-shopping-lists.md)
4. [Update Shopping Lists](/learning-implement-carts-and-shopping-lists/implement-shopping-lists/update-shopping-lists.md)
5. [Best practices](/learning-implement-carts-and-shopping-lists/implement-shopping-lists/best-practices.md)
6. [Learning check](/learning-implement-carts-and-shopping-lists/implement-shopping-lists/learning-check.md)

**Prerequisites**

- [Developer essentials learning path](/learning-developer-essentials) module

**Audience**

- Backend developers who need to learn how to build and perform operations on Shopping Lists.
- Frontend developers who are aiming to design a user-friendly Shopping List experience for website visitors.

## Related pages

- [Area overview page with navigation](/learning-implement-carts-and-shopping-lists.md)
- [Next page: Understand the Shopping List API](/learning-implement-carts-and-shopping-lists/implement-shopping-lists/understand-the-shopping-list-api.md)
- [Search documentation and API specs](/search.md)