Discussed with Sir Frits through google chat if the SKU can be changed into UPC, it can be changed but as per sir Rey, the UPC for Swarovski is not maintained by Merch, as per sir Frits, he will confirm first if what field to be used to replace the SKU, as per sir Frits, the field to be used is the style number and only the number to be extracted and remove the season in the style no., though this will be not applied yet as he will confirm this first on the principal.