The WPSyncQueue handles package exports. Each zip action on a package results in a single entry on the WPSyncQueue for the length of the zip process. Package zipping can be a long-running process when there are a large number of objects or objects with large content.

Additionally, when content synchronization is needed during the zip process, queue entries are created on PublisherQueues to synchronize that content. Content synchronization occurs when supported CAD content is in the package and content synchronization is enabled.