Understanding the different invoice status of orders

An order can have one of the following three invoice statuses. The invoice status is visible in the order list view and also in the order form view.

Nothing to Invoice: If the Shipping Policy on the order is set to As soon as possible, a status of Nothing to Invoice indicates that all products shipped to date have already been invoiced. If the Shipping Policy on the order is set to When all products are ready, a status of Nothing to Invoice indicates that the order is yet to be shipped.

To Invoice: If the Shipping Policy on the order is set to As soon as possible, a status of Nothing to Invoice indicates that one or more products shipped to date need to be invoiced. If the Shipping Policy on the order is set to When all products are ready, a status of Nothing to Invoice indicates that the order is fully shipped and can be invoiced.

Fully Invoiced: This status means that all products on the order have been invoiced.