Hi All,

I am trying to list new products using my GS1 barcodes, and getting errors. You are using UPCs, EANs, ISBNs, ASINs, or JAN codes that do not match the products you are trying to list. If you believe you have reached this message in error, please contact Seller Support.
Which I did, they asked me for list of things,

I submitted my GS1 certificate and link to my trademark on Ipo, they coming back with the followings

''Thank you for providing the requested information.

We tried to check the trademark link you provided but it is not available on our end. May we ask your kind cooperation and provide 1 of the following instead:

• Copyright
• Legal Agreement
• Letter of Affiliation
  • Letter of Affiliation should be clear and legible.
  • Include letterhead (preferably with logo).
  • Include the issuer’s name and contact information that Amazon can contact to verify if necessary.
  • The affiliation between the brand and GTIN Owner should be clearly called out.’’
    What is Letter of Affiliation

Thanks