Migrating OLAP databases
Before migrating the OLAP database, ensure that all required users have been created in the Users and User groups dashboard and all required roles have been created in the Data Roles or Application Roles dashboards.
- The _#_SYSUSR dimension, which is used for workflow and comments, is updated when Designer recreates the OLAP database. If the users are not available, data for missing users is dropped.
- The _GRP dimension, which is used for data access permission, and for group tasks, is updated when the database starts with the roles that exist in the application. If the roles are not available, the GRP elements are dropped, losing data defined for them.
See "Exporting and importing OLAP databases" in the "EPM Administration" section.