ORA-31633: unable to create master table SYS_EXPORT_SCHEMA_01

The following errors occur when exporting/importing through data pump:

 ORA-31626: job does not exist
 ORA-31633: unable to create master table "USERNAME.SYS_EXPORT_SCHEMA_01"
 ORA-06512: at "SYS.DBMS_SYS_ERROR", line 95
 ORA-06512: at "SYS.KUPV$FT", line 1048
 ORA-01031: insufficient privileges

SOLUTION

To make sure user ‘USERNAME’ to have enough privileges to do import/export.