SQL> alter session set container=pdb1;

SQL> create or replace directory dumpdir as '/u12/app/dumpdir';

SQL> grant read,write on directory dumpdir to scott;

SQL> create audit policy dp_01 actions component=datapump export;

SQL> audit policy dp_01;

$ expdp scott/tiger@pdb1  dumpfile=scott_schema directory=dumpdir

SQL> exec sys.dbms_audit_mgmt.flush_unified_audit_trail;

SQL> select dp_text_parameters1,dp_boolean_parameters1 from unified_audit_trail where dp_text_parameters1 is not null;

DP_TEXT_PARAMETERS1                                                              DP_BOOLEAN_PARAMETERS1

-------------------------------------------------------------------------------- --------------------------------------------------------------------------------

MASTER TABLE:  "SCOTT"."SYS_EXPORT_SCHEMA_01" , JOB_TYPE: EXPORT, METADATA_JOB_M MASTER_ONLY: FALSE, DATA_ONLY: FALSE, METADATA_ONLY: FALSE, DUMPFILE_PRESENT: TR

ODE: SCHEMA_EXPORT, JOB VERSION: 12.1.0.2.0, ACCESS METHOD: AUTOMATIC, DATA OPTI UE, JOB_RESTARTED: FALSE

ONS: 0, DUMPER DIRECTORY: NULL  REMOTE LINK: NULL, TABLE EXISTS: NULL, PARTITION

 OPTIONS: NONE

SQL>