The correct statement about Person Accounts and Contacts is that Person Accounts are appropriate for B2C transactions while Account-Contact model is appropriate for B2B transactions. A Person Account is a type of account that represents an individual consumer, rather than a business or organization. A Person Account combines the features and fields of both the Account and Contact objects, and it does not require a Contact record to be associated with it. A Person Account is suitable for B2C transactions, where the customers are individual consumers who purchase products or services for personal use. An Account-Contact model is a type of data model that represents a business or organization as an account, and its employees or affiliates as contacts. An account can have many contacts associated with it, but a contact can only belong to one account. An Account-Contact model is suitable for B2B transactions, where the customers are businesses or organizations that purchase products or services for professional use. Verified Reference: https://help.salesforce.com/s/articleView?id=sf.accounts_person.htm&type=5 https://help.salesforce.com/s/articleView?id=sf.accounts_contacts.htm&type=5

The reason why Fulfillment Order does not appear as an option when creating a rollup field on the Order Summary object is that the Order Summary field on the Fulfillment Order object is a Lookup. A Lookup field is a type of custom field that creates a relationship between two objects, but does not support rollup summary fields. To create a rollup summary field, the relationship between the objects must be master-detail, which means that the child record cannot exist without its parent record. Verified Reference: https://help.salesforce.com/s/articleView?id=sf.custom_field_types.htm&type=5 https://help.salesforce.com/s/articleView?id=sf.fields_about_roll_up_summary_fields.htm&type=5

The administrator can use two tools to debug an issue with an Apex trigger: Log Inspector in the Developer Console and Debug Logs in Setup. The Log Inspector is a tool that displays a graphical representation of a debug log, which is a record of database operations, system processes, and errors that occur when executing a transaction or running unit tests. The Log Inspector helps you analyze and troubleshoot your code by highlighting errors, checkpoints, and execution times. The Debug Logs page in Setup lets you monitor and retain debug logs for users, Apex classes, Apex triggers, and Lightning components. You can view, download, or delete debug logs from this page.

The Order Summary object is a custom object that stores information about an order, such as the total amount, the number of items, and the fulfillment status. The Order Summary object is created by a process called Create Order Summary Process, which runs whenever an order is created or updated. The process calls a flow called Create OrderSummary Flow, which calculates the order summary fields and creates or updates the order summary record. The process and the flow are part of the Order Management package and must be installed and activated for the order summary object to be created. Reference: Order Management Lifecycle, Order Management Objects, Configure Order Management Flows

Based on some changes in Universal Containers' Commerce engine, new Orders are expected to have two additional attributes at the header level. In Order Management, besides Order, the other object that also needs to be extended is Order Summary. An Order Summary is a record that stores information about an order, such as the total amount, the number of items, and the fulfillment status. An Order Summary is created by a process called Create Order Summary Process, which runs whenever an order is created or updated. The process calls a flow called Create OrderSummary Flow, which calculates the order summary fields and creates or updates the order summary record. To extend an object in Order Management, an administrator can create custom attributes on that object that match the API name and data type of the corresponding attributes in B2C Commerce. Reference: Order Management Objects