A merchant wants to display their eCommerce application in two languages - English and Spanish. Customers should also be able to switch displayed catalog price currencies between US Dollars and Mexican Pesos regardless of the language. What is the minimum amount of websites, stores and store views to achieve this?

The Adobe Commerce scope hierarchy is designed for this exact scenario. A single Website is sufficient as the core business, customer data, and base currency can be shared. Under this website, a single Store is used to manage a single product catalog. The requirement for two languages, English and Spanish, is handled by creating two Store Views. Each store view is configured for a specific language. The currency configuration allows setting multiple "Allowed Currencies" (US Dollars and Mexican Pesos) at the Website scope, which makes a currency switcher available on the frontend for both store views, allowing customers to switch currencies independently of the selected language.

B. 1 Website, 1 Store, 4 Store Views: This is inefficient. It would imply creating a separate store view for each language-currency pair, which prevents the independent switching of currency as required by the prompt.
C. 2 Websites, 2 Stores, 4 Store Views: This is an unnecessarily complex structure. Multiple websites are only needed for fundamentally separate businesses, domains, or customer bases, which is not described in the scenario.

1. Adobe Commerce Developer Documentation, "Websites, stores, and views".

Section: "Store views"

Quote/Paraphrase: The documentation explicitly states, "Store views are generally used to handle different languages on your storefront." This supports using two store views for the two required languages. It also clarifies that all store views under a single store share the same catalog.

Reference: Adobe Commerce Developer Documentation > Get Started > Basic Concepts > Websites, stores, and views.

2. Adobe Commerce User Guide, "Currency".

Section: "Currency Configuration"

Quote/Paraphrase: The guide explains that "Allowed Currencies" are set at the Website scope. This means a single website can be configured to support both USD and MXN. The customer can then choose which of the allowed currencies to use for shopping, independent of the store view (language) they are using.

Reference: Adobe Commerce User Guide > Stores > Configuration > General > Currency Setup.

3. Adobe Commerce User Guide, "Stores".

Section: "Store Scopes"

Quote/Paraphrase: This section details the hierarchical nature of Website > Store > Store View. It clarifies that a single website is the minimum top-level entity and that a store is primarily for defining a product catalog structure (root category), which is singular in this scenario.

Reference: Adobe Commerce User Guide > Stores > All Stores.