Add unique SKU names per supplier
If you want to change what SKU name Supplier sees on the PO - make sure to enter it in the "Supplier SKU Name". There are two locations where you can do it:
PO Directly
Simply type in the name of the SKU that you want the Supplier to see and this will be the name displayed on PDF and Excel exports.
Supplier's Settings
Navigate to Settings > Suppliers > SKUs Supplied and MOQ section within Supplier view and update the SKU name here.