New Feature: Direct Supplier Proof Upload Link
<a href ="[URL]/component/promart/orderprogress?layout=artwork-upload&id=[INVOICE NUMBER]_[PRODUCT SKU]">Click here to upload artwork</a>
If this method is used for uploading artwork the supplier will get BCCed into any amends and the final approval email.
It's not a feature everyone will want to use. But it's there and now documented if anyone would like to use it.