I'd like some way of adding an attribute to an order (or customer) after it has been processed.
We get a lot of customers in Spain especially but Italy also who ask to have their Tax ID added to their invoice. Currently we're editing a lot of PDF's to get around this.
Adding the ability to add an attribute would enable this.
Making order notes appear on our invoice is one way I've thought of but that runs the risk of other info being added to the invoice as there is no way to filter the notes.
We also get customers who would also like to change the invoice address to their work address and I understand this is a different problem and not going to happen.