You may have encountered an error when trying to run a Cache Refresh from within a Business Management Application such as the Catalog Manager or when trying to run a Commerce Server Staging Project with Refresh Cache enabled on one of the following resources (Catalog, Marketing or Orders). Some of the errors logged to the event log could include a 404 error. Where is this SiteCacheRefresh.axd file that is being requested when a Cache Refresh is executed. The answer is that there is no such SiteCacheRefresh.axd...