Full Error Message:

SKU does not match any ASIN and the product data provided is not eligible for ASIN creation.

Problem:

This issue is usually due to a branding issue where the brand has not been approved for listing creation on Amazon for your SellerCentral account.

Solution:

Amazon must approve your brand before you can use it to list products. Brands should be registered through Brand Registry, but if your brand is not eligible for Brand Registry, you can obtain an exception by contacting Amazon Seller Support.