improve visibility of amendments: generate new invoice (with new invoice number)

-Through the chained invoices, we can have the traceability. We could even display the events in the last invoices of the chain.

-We create a simple invoice data structure with order ID, Invoice ID, status, invoice lines (created from line items), timestamp, etc. And invoices are linked with one another when a new invoice is associated to the same order, cancel and replace the precedent.

-A new order is generated in a web page. Each modification made to the order generates a new invoice

-The first invoice is automatically generated (when order is complete), and then, modification happens, but a new invoice is generated (with all the gaps captured at once) on demand, if/when the hub click on “print/send invoice”.

Amendments should appear when:

-A product is deleted (through BOM or single order edit)

-A product is added

-A product weight or volume has changed through BOM

-A product quantity has changed (through BOM or single order edit)

Some users want to be able to put a note with an Order Amendment

French law requires to make invoice numbers sequential (seller should get a dedicated series for their sequence)

We need invoice numbers to differ from order number as multiple invoices can be issued for the same order.

make decision on whether to display unavailable products to sellers when they are producing the invoice