Deleting Members in the Simplified Dimension Editor
Each data value is identified by a set of dimension member values and a cube. Deleting dimension members or deselecting the cube results in data loss when refreshing an application. Deleting entity members deletes all approval units (including data) associated with them.
Before deleting members, understand where in the application they are used (in which forms, approval units, exchange rates, and so on) by using Show Usage. See Showing Member Usage in an Application.
You must delete the entity member throughout the application before deleting it from dimension. For example, if the entity member is used in a form, you must delete it from the form before deleting it from dimensions.
When deleting a large subtree of entities, you can improve performance if you first exclude approval units for the subtree (by excluding the root member) for all scenarios and versions.
To delete members: