Explanation: One invoice will be createdwhen using the Create Invoice Apex action in a flow. The Create Invoice Apex action is a custom action that creates an invoice for an order summary. An invoice is a document that requests payment from a customer for an order. An invoice can include one ormore 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. An order summary can have multiple fulfillment orders and credit memos associated with it, but only one invoice will be created for the entire order summary.

Explanation:

The object that the administrator should look at to find payment information about a returned item on an Order Summary is Credit Memo. A Credit Memo is a record that represents a refund or credit issued to a customer for a returned item. A Credit Memo has a lookup relationship to both Order Summary and Return Order objects, and it contains information such as the credit amount, status, payment method, etc. Verified References:https://help.salesforce.com/s/articleView?id=sf.order_management_credit_memo.htm &type=5

Explanation: 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 orSalesforce 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 oruse 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.

Explanation: The best way for an administrator to synchronize licenses from the production org when preparing a sandbox for development is to run the Match Production Licenses to Sandbox without a Refresh tool in Setup. This tool allows administrators to match their sandbox licenses with their production licenses without refreshing their sandbox. This way, the administrator can ensure that the sandbox has the same number and type of licenses as the production org, and avoid any license-related issues when developingor testing in the sandbox.

Explanation:

Two likely causes that could make the second submission of the same JSON payload fail are:

The payment data must be updated. The payment data in the JSON payload contains information such as the payment method, amount, and authorization code. If the same payment data is used for the second order, it may cause a duplicate payment error or an invalid authorization error.

The Order Reference Number must be updated. The Order Reference Number is a unique identifier for each order that is generated by the external system and sent in the JSON payload. If the same Order Reference Number is used for the second order, it may cause a duplicate order error or an invalid order error.

Verified References: https://help.salesforce.com/s/articleView?id=sf.order_management_order_api.htm &type=5
https://help.salesforce.com/s/articleView?id=sf.order_management_payment_api.htm &type=5