Hi excellent module. Just installed it.

Here is couple improvement succestions.
1.
Add shipping fee field for the suplier to input.
Also possibility for store owner to add the actual shipping fee after the package has arrived. These are not usually the same.

Some suppliers agree to pay back the differens of the actual shipping price and payed shipping price. Information would then be in database for later calculation.

2.
Also it would be nice to have comment field where supplier can put any crucial shipping information for the shop owner.
Then display red plag or something on PO order list on each order if unread supplier comments exist.
Better yet red flag of unread comment and green flag on read comment.

Well maybe also comments automatically emailed tostore owner.

Just my thoughts