I’m a 5-year Amazon seller with a brand-owned product line, and I’m looking for advice on transitioning from second-hand GS1 barcodes to official GS1-registered ones.

My Current Situation

We originally used second-hand GS1 barcodes (a budget decision when starting out). We’ve now purchased official GS1-registered barcodes. Current UPCs are functioning fine across all platforms, but we want to proactively switch to the new ones.

My Challenge

Amazon’s system seems more complex compared to other sales channels, and I want to ensure a smooth transition without disrupting operations like sales history or inventory management.

My Proposed Strategy

Gradually replace current inventory with FNSKU-labeled items as a temporary solution. Transition to the new GS1 barcodes in phases. Work with Amazon to update product information accordingly.

I’m looking for advice from sellers who’ve successfully navigated this process. Specifically:

Best practices for transitioning UPCs on Amazon Strategies to avoid interruptions during the switch

If you’ve been through this before, I’d greatly appreciate your insights! Thanks in advance.