Free Practice Questions for Salesforce B2B-Commerce-Developer Exam

 A developer should use Jest to author automated tests for custom Lightning web components. Jest is a powerful tool with rich features for writing JavaScript tests. It is the recommended testing framework for Lightning web components by Salesforce1. Jest allows the developer to write unit tests in local JavaScript files, run them from the command line or Visual Studio Code, and debug them using breakpoints and watch expressions2. Jest also provides features such as mocking, code coverage, snapshots, and asynchronous testing3.

Option A, Option B, and Option D are incorrect because they are not testing tools, but rather development tools. Visual Studio Code is an integrated development environment(IDE) that supports Lightning web components development with extensions and plugins4. Salesforce CLI is a command line interface that allows the developer to create, deploy, and manage Lightning web components projects5.Salesforce Developer Console is a web-based tool that provides code editing, debugging, and testing features for Apex and Visualforce, but not for Lightning web components. References:

Test Lightning Web Components

Write Jest Tests

Jest Documentation

Visual Studio Code

Salesforce CLI

[Salesforce Developer Console]

 The developer should implement the custom component so that it subscribes to events on the lightning_commerce_cartChanged channel using the Lightning Message Service. This is the recommended way to communicate between custom and standard components on the Cart page, as it allows the custom component to receive updates from the standard cart component whenever the cart items or quantities change. The Lightning Message Service is a pub/sub mechanism that enables components to communicate across the DOM, regardless of their namespace, technology, or source. The lightning_commerce_cartChanged channel is a predefined channel that carries information about the cart state, such as the cart ID, the cart items, and the cart total. References: Custom Component APIs, Lightning Message Service, Communicate Across the DOM with Lightning Message Service

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The developer forgot to publish the storefront after making changes to the products. Publishing the storefront is a necessary step to make the changes visible to the store visitors. Publishing the storefront updates the site’s metadata and content, and also triggers the site index and search index rebuilds. If the developer does not publish the storefront, the changes will not be reflected on the live site.

The following actions are not required or relevant for the scenario:

Activate the product list. This action is only needed when creating a new product list or modifying an existing one. It does not affect the visibility of the products on the storefront.

Rebuild the search index. This action is automatically performed when the developer publishes the storefront. It is not a separate step that the developer needs to takemanually.

Publish the catalog. This action is not applicable for Salesforce B2B Commerce for Visualforce, which does not use catalogs. Catalogs are only used by Salesforce B2B Commerce for Lightning Experience.

References:

Finalize and Publish Your Storefront

Customize the D2C Store Template

Configure Public Pages for a Storefront

To override tax in checkout, a developer must implement the sfdc_checkout.TaxCalculations interface. The sfdc_checkout.TaxCalculations interface is an Apex interface that provides methods for customizing the tax calculation logic for a cart or an order. The interface allows the developer to define how to retrieve tax rates and rules, how to apply tax amounts and adjustments, and how to handle tax errors and exceptions. The developer can use the sfdc_checkout.TaxCalculations interface to integrate with a third-party tax service provider or to implement their own tax calculation logic. The other interfaces do not exist or are not related to tax calculation. Salesforce References: B2B Commerce Developer Guide: Tax Integration, B2B Commerce Developer Guide: Tax Calculations Interface

The error code INSUFFICIENT_ACCESS_OR_READONLY is caused by the cartbeing no longer in a valid Checkout State during checkout flow customizations. A cart is an object that represents a collection of products and charges that a customer intends to purchase in the storefront. A cart has a Checkout State field that indicatesthe current state of the checkout process for the cart. The Checkout State can have values such as Draft, InProgress,Completed, or Cancelled. A cart can only be modified or updated when it is in Draft or InProgress state. A cart cannot be modified or updated when it is in Completed or Cancelled state. If an attempt is made to modify or update a cart that is in Completed or Cancelled state, an error with the code INSUFFICIENT_ACCESS_OR_READONLY will be thrown. This error means that the user does not have permission to edit or delete a record because it is read-only or locked. The storefront user does not have access to the Cart Delivery Method object is not a cause of this error code, as it is not related to the cart checkout state or data modification. TheCart Delivery Method object is an object that stores information about the delivery method selected for a cart in the storefront. An error has occurred during the cart shipping charge integration is not a cause of this error code either, as it is not related to the cart checkout state or data modification. The cart shipping charge integration is an integration that calculates and applies shipping charges to a cart based on various factors such as delivery method, location, weight, volume, etc. The storefront user does not have access to custom fields on the Order Delivery Method object is not a cause of this error code either, as it is not related to the cart checkout state or data modification. The Order Delivery Method object is an object that stores information about the delivery method selected for an order summary in the storefront. Salesforce References: B2B Commerce Developer Guide: Cart Object, [B2B Commerce Developer Guide: Cart Delivery Method Object], [B2B Commerce Developer Guide: Order Delivery Method Object], [Salesforce Help: Common Error Messages]

In Lightning Web Components, wire adapters are used to retrieve and manipulate Salesforce data. Wire adapters abstract the underlying data access mechanism, providing a declarative way to access Salesforce data and metadata. Salesforce documentation on LWC andthe@wiredecorator details how wire adapters can be used to connect components to Salesforce data sources, including standard and custom objects, facilitating reactive data binding and efficient data retrieval.

 According to the B2B Commerce Developer Guide, the Order List Component (Aura) for B2B stores displays a list of orders that the user can view and reorder. The component filters the orders based on the current storefront and the current effective account. The current effective account is the account that the user is currently acting on behalf of, which can be different from the user’s ownaccount. The component does not show orders placed in other storefronts or related to other accounts, even if the user has access to them. Therefore, the correct answer is A. Orders placed in the current storefront and related to the current effective account. The other options are incorrect because they do not match the criteria of the component. References: B2B Commerce Developer Guide, Show the Order List Widget

To indicate that inventory is available for all items and amounts in the cart, the developer should return sfdc.checkout.InventoryStatus.Status.SUCCESS. The sfdc.checkout.InventoryStatus.Status.SUCCESSis a constant value that represents a successful inventory status. It means that the inventory class has checked the availability of all the products in the cart and confirmed that they are in stock and can be fulfilled. The developer should use this value as the return value of the checkInventory method, which is a method that implements the sfdc.checkout.InventoryCheck interface. The checkInventory method is invoked during the checkout flow to validate the inventory availability of the products in the cart. Returning TRUE is not a valid way to indicate inventory availability, as it is not a valid inventory status value. Returning sfdc_checkout.IntegrationStatus.Status.SUCCESS is not a valid way either, as it is not an inventory status value, but rather anintegration status value. Returning sfdc.checkout.InventoryStatus.SUCCESS is not a valid way either, as it is not a valid syntax for accessing the inventory status value. Salesforce References: B2B Commerce Developer Guide: Inventory Integration, B2B Commerce Developer Guide: Inventory Status Enum, B2B Commerce Developer Guide: Inventory Check Interface

In Salesforce, developers can subscribe to platform events using both Flows and Apex Triggers. This allows for the execution of automated processes in response to the events. Apex Triggers can be written to respond to event messagesin the same way they respond to DML events. Similarly, Flows can be configured to trigger upon the receipt of a platform event. This functionality is documented in Salesforce's developer guides and best practices, which emphasize the versatility and powerof combining declarative and programmatic approaches to respond to platform events.

A Lightning Message Channel can receive signaling from any component on a page (anywhere on it). A Lightning Message Channel is a service that allows components tocommunicate with each other across different Salesforce UI technologies, such as Aura, LWC, Visualforce, and Lightning web apps. A component can subscribe to a message channel and receive events that are published by another component on the same or different page. The message channel acts as a mediator that delivers the events to the subscribers. A Lightning Message Channel does not receive signaling only from descendants (i.e., children), only from direct siblings, or only from ancestors (i.e., parents),as these are limitations of event-based communication. Salesforce References: [Lightning Web Components Developer Guide: Communicate Across Salesforce UI Technologies], [Lightning Web Components Developer Guide: Communicate with Events]