We have been using Wizard Industries for our Amazon 2D barcodes for years. Their software has been key in scaling our operations. We started with just a few team members, but now have a staff of 10. Our shipping and quality assurance team use the software daily.
Even better, when I asked for a customization that our team needed, they took care of it quickly. Their simple change saved me 20 minutes of work per day.
If you're looking for a 2D barcode solution for your FBA shipments, I can't recommend enough.