When you list a product on Amazon, it generally appears within 15 minutes. However, some product listings can take up to 24 hours to appear. In particular, products with parent-child relationships typically take longer to appear.
Note: In order for your child product listings to appear correctly on product detail pages, you must provide data for all of the variation attributes of the parent product. Amazon will suppress product listings for child ASINs if data for variations of the parent product. If any are missing, the parent product won't appear and buyers wouldn't have all of the information needed to make purchasing decisions about the product. For more information about the recommended variation attributes for your product listings, refer to the Product Page Style Guides.
If you have created a new product page, it can take up to 24 hours before the search terms and title of the page are searchable, but you can find the product page earlier if you search by ASIN.