Two ways that events fired from Lightning web components can be handled are programmatically adding event listeners and attaching handlers to DOM elements. Programmatically adding event listeners is a way of handling events by using JavaScript code to register functions that are invoked when an event occurs. The developer can use methods such as addEventListener or @wire to add event listeners to components or services that fire events. Attaching handlers to DOM elements is a way of handling events by using HTML attributes to bind functions that are invoked when an event occurs. The developer can use attributes such as onclick or onchange to attach handlers to DOM elements that fire events. Adding callbacks to components is not a valid way of handling events fired from Lightning web components, as it is not related to event handling, but rather to asynchronous programming. Listening for all possible events at the document root is not a valid way either, as it is not efficient or recommended for event handling, as it can cause performance issues or conflicts with other event listeners. Salesforce Reference: [Lightning Web Components Developer Guide: Handle Events], [Lightning Web Components Developer Guide: Communicate with Events]

To enable Salesforce B2B Commerce logging in the managed package, you need to do two steps. First, you need to save a value in the Logging Token input field in the Global Settings section of CC Admin. This value can be any string that you choose, such as ''debug''. Second, you need to ensure that the value saved in the Logging token field is appended to the ccLog query parameter in the URL of the storefront page that you want to debug. For example, if your logging token is ''debug'', then your URL should look like this: https://my-storefront.com/?ccLog=debug. This will enable logging for that page only. You do not need to turn on the checkbox ''Cloudcraze Logging'' in CC Admin, as this is an old setting that is no longer used. You also do not need to set a cookie with the Id of the user accessing the storefront in CC Admin, as this is not required for logging. Salesforce Reference: [B2B Commerce Developer Guide: Logging]

Two things that happen with the cart during tax implementation are that new entries are written to the cart and previous entries are deleted from the cart. A tax implementation is an integration that calculates and applies tax rates and amounts to a cart or an order based on various factors, such as product type, price, quantity, location, and tax rules. A tax implementation can use either an external tax service provider or custom Apex code to perform the tax calculation. When a tax implementation is invoked for a cart, it writes new entries to the cart with a type of Charge and a charge type of Tax. These entries represent the tax amounts and adjustments that are applied to the cart. Before writing new entries to the cart, the tax implementation deletes any existing entries with a type of Charge and a charge type of Tax from the cart. This ensures that the tax calculation is accurate and up-to-date based on the current state of the cart and avoids any conflicts or inconsistencies with previous tax entries. Previous entries are not copied to another object or modified with the new tax calculation, as these are not valid actions for handling existing tax entries. Salesforce Reference:B2B Commerce Developer Guide: Tax Integration,B2B Commerce Developer Guide: Tax Calculation Flow

It is preferable to extend the Salesforce B2B Commerce remote invocation object instead of using the standard Salesforce remote action invocation manager for two reasons:

The APEX method called by the remote action will be passed as a Salesforce B2B Commerce context object, which contains useful information such as the current user, cart, storefront, and configuration settings. This can simplify the development and testing of the remote action.

The Salesforce B2B Commerce logger can be utilized in the remote action, which allows logging messages and errors to the debug log or to a custom object. This can facilitate debugging and troubleshooting of the remote action.

In Salesforce Experience Cloud, components like CMS Collection and Results Layout are designed to be reusable across different Experience templates, not just limited to B2B Commerce. CMS Collection allows for the display of CMS content in a flexible and dynamic layout, while Results Layout can be used to present search or query results in a customizable format. Salesforce documentation on Experience Cloud components emphasizes the reusability and adaptability of these components across various templates and contexts.