> For the complete documentation index, see [llms.txt](https://docs.langstack.com/welcome/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.langstack.com/welcome/get-started/learn-langstack/introduction-to-entities/exercise-1-customer-accounts-and-activities/customer-accounts.md).

# Customer accounts

In this part of the exercise, store customer information.

Follow the steps to: 

* Create an Entity to store information related to customer accounts “UserName\_Acc\_customers”.
* Create an API to create and store records in that entity “UserName\_Acc\_AddCustomer”.
* View customer records created through the API stored in the “UserName\_Acc\_customers” entity.