Which module is key for managing payment methods in SFCC?

The key module for managing payment methods in Salesforce Commerce Cloud (SFCC) is the Payment Services module. This module is specifically designed to handle the integration and management of various payment options and services that merchants can offer to their customers. It provides the necessary functionalities for securely processing transactions, managing payment authorizations, and handling different payment methods such as credit cards, e-wallets, and other online payment systems.

Utilizing the Payment Services module allows developers to easily configure and extend payment options based on business needs while ensuring compliance with security standards and best practices for payment processing. This centralization of payment functionalities within a dedicated module makes it easier to implement changes and updates related to payments without affecting other parts of the application.

In contrast, modules like Transaction Controller and Checkout Module have broader scopes focused on overall order management processes and customer interactions during the checkout phase, respectively. These do not specifically target payment method management, and while they may interface with payment services, they do not encompass the full functionalities necessary for payment method management alone. Similarly, the Order Management module deals more with post-checkout processes regarding order fulfillment and tracking rather than payment processing management.