When I select the dropdown to make the adjustment, at # 5 direction does not come up.  It only says to contact Quickbooks.

When I contacted QB, after an hour, the person obviously didn't know what they were doing.  I didn't want to waste any more time.  Still have no answer.  I wish it were this simple as the instructions you provided.  

As to re-emphasize, this is only for two payrolls that are not going to their Classes - Aug. 1 and Aug. 15, 2024.  ALL payrolls since then are going to their proper classes.