04ac3695_se_Notes___Amazon_Web_Services__Issue
[Description] There is a lag time incurred for the availability status of an item to be updated. For a few items in each Search Index, however, those lag times are exceptionally long. These lag times account for inaccurate availability information, even when the ItemSearch parameter, Availability, is set to "Available." To check the true availability of an item, use the Offers Response Group. If an offer is returned for an item, it is truly available. [Impact] Do not use requests that list the availability of items in the response. [Issue] 
Updating the availability status of some items takes exceptionally long.
Release: Amazon E-Commerce Service on 2007-07-23 : Release Notes : Amazon Web Services