To support multilingual product data in Salesforce B2B Commerce, data translation must first be enabled for the relevant fields on the Product2 object, such as Name and Description. Once enabled, translated values for these fields can be entered for each product record. The B2B Commerce Product List and Product Details APIs are designed to be locale-aware. When a request is made with a specific language header (e.g., 'fr' or 'de'), these APIs automatically retrieve and return the corresponding translated data if it exists, ensuring customers see product information in their selected language.

A. Translation Workbench is used for translating metadata (e.g., field labels), not record data like product names. The Metadata API is not used for retrieving catalog data.

B. This option is incomplete because it omits the critical prerequisite of enabling data translation in Salesforce Setup. Without this step, providing translated values has no effect.

1. Salesforce Help, Topic: Enable Data Translation.

Reference: "Data translation lets you translate the data stored in some fields on standard and custom objects. For example, you can translate the names and descriptions of products... Before you can translate data, you must enable data translation in Setup." This confirms the necessity of enabling the feature first.

2. Salesforce B2B and D2C Commerce Developer Guide, Section: Localization.

Reference: The guide explains that for product data, "B2B Commerce for Visualforce uses data translation for product names and descriptions." It further details that the APIs are designed to respect the effective account's locale or the language set on the storefront, automatically pulling the translated data from the Product2 record. This supports the role of the B2B Commerce APIs in serving translated content.

3. Salesforce Connect REST API Developer Guide, Section: Internationalization.

Reference: While not specific to B2B Commerce APIs, this guide establishes the standard Salesforce API behavior. It states, "Use the Accept-Language HTTP header to specify the desired language for the response." The B2B Commerce APIs follow this standard, confirming that they are designed to handle and respond with translated data based on request headers.