We are moving our fulfillment from FBA (Fulfillment by Amazon) to SFN (Shopify Fulfillment Network).
I am on **Step 2 -**Barcode products of Create inbound transfer. I have trying to use the barcode that I already have on my listing, but I am getting this error: Barcode is already in use, enter another barcode.
I should be able to use the barcode (UPS) that is on the product listing.