What Causes Error 8026?
This error occurs when you submit the product data for a category in which you are not authorized to list. You will need to obtain approval from Amazon before listing in certain product categories.
Seller is not authorized to list products in this product line or category.
How to Solve and Prevent Error 8026:
Refer to the Help page for more details on the various categories and requirements for obtaining approval. Visit the Categories and products requiring approval page, and follow the instructions to submit your application.