Oracle Message ORA-16229 - PDML child string string string for parent string string string cannot be skipped.

ERRORPDML child string string string for parent string string string cannot be skipped.
CAUSEA request was made to skip a parallel DML child transaction id. This is not supported.
ACTIONUsing the DBMS_LOGSTDBY.UNSKIP_TRANSACTION procedure, remove the child transaction id, then specify the parent transaction id using DBMS_LOGSTDBY.SKIP_TRANSACTION if appropriate.