Mostly, all of the entrepreneurs start their amazon business with the aim of increasing sales and improving the bottom line. But, the problem is whether the best way for your business is Fulfillment By Amazon (FBA) or Fulfillment By Merchant (FBM). You can only set up your company account as an FBA or FBM while you’re registering as a seller on Amazon. You can only set up your company account as an FBA or FBM while you’re registering as a seller on Amazon.