Which three objects need to be utilized when creating orders using the composite API?

The PricebookEntry, 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 andcurrency References: [Create Orders Using Composite API], [Composite Resources]