ORA-16904
        Member may be a primary database or is receiving redo data from another primary database.
        
        
        Cause
        A role change operation may have resulted in this member either becoming a primary database or was receiving redo data from a standby database that became a primary database.
        Action
        Evaluate all members' roles in the configuration and confirm which database should be the primary database before taking further action.
        
     
    
    
        ORA-16904
        Member may be a primary database or is receiving redo data from another primary database.
        
        
        Cause
        A role change operation may have resulted in this member either becoming a primary database or was receiving redo data from a standby database that became a primary database.
        Action
        Evaluate all members' roles in the configuration and confirm which database should be the primary database before taking further action.
        
     
    
    
        ORA-16904
        Member may be a primary database or is receiving redo data from another primary database.
        
        
        Cause
        A role change operation may have resulted in this member either becoming a primary database or was receiving redo data from a standby database that became a primary database.
        Action
        Evaluate all members' roles in the configuration and confirm which database should be the primary database before taking further action.