When you insert a Shared Element into a document, Web Intelligence creates a link between the Shared Element and the document. A query is also created within the document to provide the Shared Element with data. Since a new query is created within the document to support the Shared Element, they can be added to existing documents or new documents created with no data source. Once added, if desired, the query or block can be modified without breaking the link with the given element in the CMS repository; meaning that new dimensions, metrics or conditions can be added to the Shared Element and used within the report.
Changes done to the block or query within the Shared Element are not available to other users, however, unless the Shared Element is republished/saved back to the repository under the same name. The security profile of the person making the changes to the Shared Element would also need to be set so that they can save in the folder where the Shared Element is located.
Subsequently, the content of the shared element is not automatically updated if a new version is available. You can automatically update Shared Elements each time you open the document by enabling the option “Update Shared Element(s)” on open in the Properties of the document.