Can you correct data in PS_CA_ACCTG_LINE table directly?

The CA_LOAD_GL1 process loads the contract data into the PS_CA_ACCTG_LINE table.  If there are combo edit errors in the contracts module it will still load the data to this table.  When you run JGEN the entry that gets created will have combo edit errors.  In researching the correct way to clear the JGEN errors I found document id 612437.1.  In that document it references in the third step of the third option to, "correct the out of balance source data on the Accounting Entry Table and re-run the journal generator process."  I would like to know the steps to correct the data in the PS_CA_ACCTG_LINE table.  The wording to me suggests you should be able to correct the data, but I have been unable to find a location to do that in the PIA.