A price group can be dynamically set by extending the cc_hk_pricing hook. This hook allows modifying the price group based on various factors, such as the user, cart, product, or storefront. For example, the hook can apply a different price group for a specific product category or for a specific user segment.

Useful debugging information in Salesforce B2B Commerce implementation can be garnered in three ways:
Enabling the logging token via Admin and subsequently inspecting the logs via the browser console. This will enable logging messages and errors to the browser console, which can be viewed by opening the Developer Tools in the browser. The logging token can be enabled by setting the value of CO.logToken to true in CCAdmin.
Enabling debugging options for the current user and visually inspecting the Salesforce debug logs. This will enable logging messages and errors to the Salesforce debug logs, which can be viewed by opening the Debug Logs page in Salesforce Setup. The debugging options can be enabled by creating a Debug Level and a Trace Flag for the current user in Salesforce Setup.
Logging into the community as a system administrator to identify any potential permissions or Visualforce exceptions. This will allow viewing any errors or warnings that may occur on the community pages due to insufficient permissions or Visualforce issues. The system administrator can also access CCAdmin and other tools from within the community. Salesforce Reference: B2B Commerce and D2C Commerce Developer Guide, Logging, Debug Your Code

Two methods from the platformResourceLoader module that are relevant for including third party JavaScript and CSS in a Lightning web component are loadScript and loadStyle. The platformResourceLoader module is a module that provides methods for loading JavaScript or CSS files from static resources or external URLs into a Lightning web component. The loadScript method is used to load a JavaScript file and execute it in the component. The loadStyle method is used to load a CSS file and apply it to the component. The loadClientScript method does not exist or is not relevant for including third party JavaScript in a Lightning web component. The loadCss method does not exist or is not relevant for including third party CSS in a Lightning web component. Salesforce Reference: Lightning Web Components Developer Guide: Load Scripts and Style Sheets, [Lightning Web Components Developer Guide: platformResourceLoader Module]