Backorder Invoice
When a Customer Invoice is generated from a backorder, a notification will appear at the top of the invoice indicating that it originated from a backorder.

Any backorder Invoice created automatically copy the Delivery Address and Title from the original Invoice.
If the original invoice has a blank Delivery Address or has no Title recorded, the backorder invoice will also remain blank.

Deleting Backorder Invoices
An invoice created from filling backorders is deleted, the user will be notified that this action will not reinstate the original backorder.

If multiple invoices are selected for deletion from the Invoice list, the same message will be shown, and the user will be required to confirm before proceeding.
