Dear to pull from Magento2 what is invoiced to the customer

In many cases, the e-commerce customers place an order, however the business might be unable to deliver everything. 

As such, in the case of Magento2, what is "shipped" and "invoiced" might be different than the original order. It make sense operations-wise for Dear to pull from Magento2 the invoice and its contents, and not the original order.