I've just upgraded a client from Expresso Store V1.6 to V2. They use Paypal Express.
Previously the Store would list the order number as a line item in the paypal invoice, but now it lists the products and doesn't mention the store order number. They have requested this back as they use this order number to reference payments and deliveries, also sometimes people pay with cards not in their name so using the order number avoids confusion.
Any ideas?