This article applies to selling in: Singapore

Using the manufacturer barcode to track inventory

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By default, your seller account is set to use the manufacturer barcode for eligible items to track your inventory throughout the Amazon fulfilment process. You can change this default barcode preference at any time for new AFN offers that you wish to create. In addition, you have the option to change your barcode preference for each new AFN offer you create. You can also change your barcode preference for a product when you change a listing from Fulfiled by Merchant to Fulfiled by Amazon.

Important: Items in your inventory that are identified and tracked using manufacturer barcodes are commingled with items of the same products from other sellers who also use manufacturer barcodes for those items.

When your barcode preference is set to use the manufacturer barcode and a customer purchases a product from you, Amazon can send the item that is available closest to the customer, even if you did not send this particular unit to the fulfilment centre. When that happens, you sell that unit as usual to the customer and get the credit for the sale. At the same time we assign an item of same nature from your inventory to the seller whose inventory was used to fulfil the order. In addition, if you use the manufacturer barcode, you do not have to apply an Amazon barcode to each item yourself.

Even though inventory tracked using the manufacturer barcode is commingled within the network, the source of the inventory is tracked by our fulfilment systems and is taken into consideration if inventory problems arise.


Not all inventory is eligible for tracking with the manufacturer barcode. To be eligible, products must, at a minimum:

  • Be in new condition
  • Have a single scannable barcode that corresponds to a single ASIN in the Amazon catalogue
  • Not be expiry-dated
  • Not be consumable or topical products such as skin creams, shampoos or make-up.
Note: If the manufacturer barcode maps to more than one ASIN, an Amazon barcode is required.

In addition, Amazon may determine, at its sole discretion, that a product is otherwise not eligible. Amazon will identify the products that are not eligible and require an Amazon barcode when you create your offer. Amazon will, at its sole discretion, determine which products meet the eligibility requirements for using manufacturer barcodes.

Change your default barcode preference setting

You can change your default barcode preference in your Fulfilment by Amazon settings at any time. Your new default barcode preference applies only to the offers that you create after you change your settings. You cannot change your default preference for existing offers and must either create a new offer or change the barcode preference for each existing offer individually.

To change your default barcode preference:

  1. In your seller account, under Settings, click on Fulfilment by Amazon.
  2. Locate FBA Product Barcode Preference and click Edit.
  3. Select Enable to use the Manufacturer barcode or Disable to use an Amazon barcode. Click Save.

Please allow 24 hours for the changes to be fully processed before creating new offers for your eligible inventory.

Note: When you change your default barcode preference, the change applies only to listings created after you change your preference.

Change the barcode setting for a single ASIN

The option to switch to using the manufacturer barcode for eligible products is available when you change a listing from Fulfiled by Merchant to Fulfiled by Amazon. For listings that are already set to Fulfiled by Amazon, you must create a new listing to use the Amazon barcode option and vice-versa.

Removing inventory with manufacturer barcodes

If you submit a removal order for inventory tracked using manufacturer barcodes, the items that you receive may not be the same units that you originally sent to Amazon.

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