You cannot use any of the following terms as dimension names on SAP BPC

App, AppAccess, AvlObject, CategoryAccess, CollabDoc, CollabIcons, CollabRecipient, CollabSupport, CollabType, DBVERSION, Defaults, DesktopStyleDef, Dimension, DrillDef, DTIParam, Function, Formula, Group, InvestParam, MemberAccess, MessageLog, Packages, PageDef, Permission, PublishedBooks, Rate,ReportParam, SectionDef, Status, StatusCode, TaskAccess, User, UserGroup, UserPackages, UserPovDef,WebContents, SOURCE, SIGNEDDATA


In addition, you cannot name a dimension after an existing BPC database table.