Two companies (vendors) in two countries

Thanks Jerome,
I was able to create a custom field for the vendor. I named the table column 'footer'. I have no PHP knowledge. Could you please tell me where to place 'footer' in the code you gave me?

$field = $this->extraFields['vendor']['footer'];
$fieldname = $field->field_namekey;
echo $this->fieldsClass->show($field, $this->vendor->$fieldname);

product name in invoices
About the translation of the order product names, it's not possible like that ; the names are stored in the database to keep the product name when the order has been made ; so if the product change, the order not (It's an obligation for invoices).
I will suggest you to read other topics in the HikaShop forum (in the HikaShop section). It is HikaShop related and I won't be able to help you here for that problem.
Like I said, it won't be possible.
You have to load the product from the database using the product_id, it is the single and only solution to do that.

Hi Jerome,
thanks, the code does work now!
I'll check the product stuff as you suggested in the HikaShop section.
Regards
Roger