Products can appear as out of stock for many reasons:
If you recently added your products to Amazon and they appear to be out-of-stock, wait 24 hours for our catalog information to fully update. If you use inventory files to manage your products, you should check your latest inventory file uploads and correct any errors. If no errors exist or you use the Add a Product feature in Seller Central to create your products, use the Manage Inventory feature in Seller Central to find your products and check their quantity. If the available inventory is zero, update your inventory. If the Manage Inventory feature shows available inventory, please contact us and include a list of product ASINs which appear to be out of stock.