Rebuild Master Data Model
The data warehouse model is replicated in the BI Portal database. If data warehouse definitions change, administrators must rebuild the master model; for example, a column or new star schema added, or labels and descriptions created.
Important: The rebuild master command does not delete or affect any of the existing data security models or the user relationships to those models because they are maintained in the BI Portal database.
Note: To update the data security model, open and save the data security models that include objects affected by the change.