I want to present two versions of my product. One is ready for FBA now. So I successfully transitioned it from being a FBM (“Fulfillment by Merchant” ) to being FBA. I have also updated the product so that it can be successfully FBA. But now I have some of the original products that I want to sell as FBM. So what I did so far is to copy the entry in my inventory and set up another product description. This is where I hit a snag. Somehow the Amazon system is not accepting the new GTIN product. Is it because I just created it and I have to wait for some database update?