In many cases you will want your items to be in a specific category, this could be because of Amazon category restriction issue or a UPC issue or just because you think it will sell better in a different category.
For that you will need to find the right category classification.
Go to https://sellercentral.amazon.com/listing/classify
Choose the category through the search bar or manually.
Choose "select" on the right category:
Copy the information and send it to us via the messenger on the bottom right corner.