In March, we’ll end commingling practices across our supply chain and update eligibility criteria for using manufacturer barcodes.

Commingling is when we fulfil customer orders using exact product matches from the closest available inventory in the Amazon fulfilment network, even if that inventory belonged to a different seller, to achieve faster delivery speeds. Now that most sellers maintain inventory levels that keep products close to customers, we can achieve fast delivery without commingling.

The following requirements will go into effect for inventory shipped on or after March 31, 2026:

• Brand owners with the brand representative selling role in Amazon Brand Registry will no longer need to apply Amazon barcode stickers to prevent commingling for products that already have manufacturer barcodes (such as UPC, International Standard Book Number (ISBN)). This means more flexibility in how you manage inventory because you will not need to pre-allocate units to Amazon or other channels. For more information, go to How to switch to manufacturer barcodes.
• Resellers (not enrolled in Amazon Brand Registry as a brand representative selling role) will now be required to use Amazon barcode stickers for products even if they have a manufacturer barcode. If you are already using these stickers, you can continue to follow your existing process.
• For products that do not have a manufacturer barcode, both brand owners and resellers will need to use Amazon barcode stickers.

For more information, go to FBA barcode choice and labelling FAQ.