They failed.
They met on Thursday with Fatah representatives and on Saturday with Hamas.
The most recent crisis between them occurred a week ago when Fatah targets were simultaneously bombed ahead of a planned rally to celebrate the aniversary of Yasser Arafat's death. Fatah blames Hamas and Hamas denies any involvement, blaming instead the Salafist groups in Gaza - who in turn denied it and blamed Hamas as well.
Unity has been a joke for years, and chances of any real rapprochement between the groups are remote as long as Hamas insists that it controls the security and borders of Gaza.