Once the administrator has activated the integration between B2C Commerce and Order Management, orders being placed by customers will be sent to Order Management if the order status is set to Active or New. These are the two order statuses that indicate that an order has been created or confirmed by a customer, and that it needs to be processed by Order Management. Verified Reference: https://help.salesforce.com/s/articleView?id=sf.order_management_order_api.htm&type=5

The Order Summary object is used to create an invoice. An invoice is a document that requests payment from a customer for an order. An invoice can include one or more fulfillment orders and one or more credit memos. A fulfillment order is a record that represents a part of an order that is fulfilled by a specific location. A credit memo is a record that represents a partial or full refund for an order or a fulfillment order. To create an invoice, an administrator can use the Create Invoice Apex action in a flow. The Create Invoice Apex action requires the Order Summary ID as an input parameter and creates an Invoice record associated with the Order Summary record. Reference:Order Management Objects, [Create Invoice Apex Action]

The Pricebook Entry, Contact, and Account objects are required when creating orders using the composite API. The composite API is a REST API that allows creating multiple records in one request. To create an order using the composite API, an administrator needs to provide the following information:

The Account ID of the customer who placed the order

The Contact ID of the customer who placed the order

The Pricebook Entry IDs of the products that are ordered

The quantity and unit price of each product

The order status and currency Reference: [Create Orders Using Composite API], [Composite Resources]

The integration between B2C Commerce and Order Management is not enabled by default.To activate it, an administrator needs to file a support case with Salesforce and provide the necessary information, such as the B2C Commerce instance URL, the Order Management org ID, and the API user credentials3

Two steps that are required to add an item to the Actions & Recommendations panel on the Order Summary record page are:

Drag the Actions & Recommendations component on the page. The Actions & Recommendations component is a standard component that displays actions and recommendations based on business logic for records in Lightning Experience or Salesforce mobile app. The administrator can use the Lightning App Builder to drag and drop the Actions & Recommendations component onto the Order Summary record page layout.

Create a new sub-flow. A sub-flow is a type of flow that can be invoked by another flow as an element. A sub-flow can contain logic and actions that are specific to a certain scenario or use case, such as order fulfillment or payment processing. The administrator can use Flow Builder to create a new sub-flow that defines the actions and recommendations for Order Summaries, and then add it to the Actions & Recommendations component on the record page.

Verified Reference: https://help.salesforce.com/s/articleView?id=sf.om_actions_recommendations.htm&type=5 https://help.salesforce.com/s/articleView?id=sf.flow_ref_elements_subflow.htm&type=5