Every order in Brightpearl needs to be invoiced, including those downloaded from Magento, even though the invoice might not need to be sent to the customer.
Invoicing must be done in order to create the necessary accounting for sales, tax and to balance against the payment from the customer. It can be done one order at a time or in batches from the recent sales list.
If there’s a billing email address on the order, and you’ve set your Brightpearl account to email invoices automatically, then the PDF invoice will be sent to the customer at the point of invoicing. The template used and the email address from which it is sent are defined against your channel brand is Brightpearl.
Invoicing the order in Brightpearl won't update the order in Magento by default. However, it is possible to link the Brightpearl "Invoiced" order status to an order status in Magento, such as "Complete". This will have the effect of triggering an order status update in Magento when the order is invoiced in Brightpearl.