Each product fulfilled by Amazon requires a barcode. We will always use the manufacturer’s barcode to track your inventory throughout the fulfillment process, unless you change your barcode setting.
If multiple sellers have inventory with the same manufacturer barcode, Amazon may fulfill orders using products with that barcode when those products are closest to the customer. This happens regardless of which seller actually receives a customer’s order. We use this process to facilitate faster delivery.
When you receive a customer order:
When another seller receives an order for the same product:
For inventory tracked with the manufacturer barcode, each seller’s sourced inventory of the same ASIN is stored separately in our fulfillment centers. We can also track the original seller of each unit.
To fulfill your orders exclusively with your inventory, you can switch to the Amazon barcode at any time (see Changing your barcode setting below).
You can change your barcode setting for:
For more information, see these Seller University videos:
To ensure that we can track your inventory accurately, Amazon has specific eligibility requirements for products using the manufacturer barcode. To qualify, products must:
To change your barcode setting at any time:
Please allow 24 hours for the changes to be fully processed before creating new offers.
Because the new setting will apply only to new offers, you cannot change the setting for existing offers. To use a new barcode setting, you must create a new offer or change the barcode setting for each existing offer.
Each shipment you create for an ASIN after changing your barcode will reflect this new setting until you change it. For the Amazon barcode, you must apply a sticker on each unit. For the manufacturer barcode, you must apply one of the eligible barcodes (GCID, UPC, EAN, JAN, or ISBN).
You can use the manufacturer barcode for eligible products by changing a listing from Fulfilled by Merchant to Fulfilled by Amazon. For offers that are already set to Fulfilled by Amazon, you must create a new offer to use the manufacturer barcode.
The same process applies when you change to the Amazon barcode.
If you submit a removal order for inventory tracked using manufacturer barcodes, you will receive units with those same barcodes. However, they might not be the exact units that you originally sent to Amazon.
Every time you create a shipment, a notification on the Set Quantity page will show which of your offers qualify for the manufacturer barcode. To begin switching from the Amazon barcode to the manufacturer barcode, click Convert. You can also replace your current offer with the offer just created.
You can convert to the manufacturer barcode in one of two ways:
Eligible offers can also be converted to the manufacturer barcode when you go to Manufacturer barcode: Convert eligible offers. You can generate an Excel file with eligibility details for your existing inventory, along with instructions on how to update and upload the file to convert your eligible offers.
When you create a new offer after switching to the Manufacturer barcode or Amazon barcode, information from the old merchant SKU usually won’t apply. Read the following to see where action is required for your new SKU: