Change a dimension's structure

If you must change a dimension's structure, we recommend rebuilding the model. This is the only supported way to make this type of change. Other changes should be made using Architect, on the Members in Hierarchy page.

If the dimension needs to change from hierarchical to flat, or from flat to hierarchical, you must use the Model Builder. Be sure that you have a complete backup of the database before you start. All user sessions must be killed or disconnected throughout the entire change.