Hello @Seller_XJ5fPXK82lIHl,

Michelle at Amazon here. Anytime you change a brand on your listing you will need to create a new ASIN. This is per the Detail Page Rules Policy which states:

Policies for editing detail pages

You may only update detail pages to better or more accurately describe the product as originally listed. For example, permissible updates include additional details, clarifications, grammatical fixes, or removal of content that violates Amazon policy.

You must not use an existing listing for a new version of a product. This includes changes in color, size, material, features, and product name. Instead, create a new product detail page for each new version. For example, a manufacturer updates its streaming media player by adding a new remote control with four buttons instead of two. This product is materially different from the older version and it must be listed as a new ASIN.

If you choose to re-brand a product, please refer to Amazon Brand Name Policy page for minor Brand name changes. Any major Brand Name change requests are considered re-branding and will not be supported. To protect Customer trust and ensure catalog quality, we ask that you create a new ASIN for the new product.

You cannot edit, update, or add the product ID for a listing that has been created with GTIN exemption. Product ID is a non-editable value and cannot be modified once a listing is created. If you want to update the product ID for a listing that has been created with GTIN exemption, you must delete and create a new listing of the product with a GS1 approved product identifier.

Please know that when you create a new ASIN, you will need to build your reviews again as they cannot be transferred from one ASIN to another.

I hope this information is helpful.

Regards,

Michelle