Congress of South African Trade Unions (Cosatu) general secretary Zwelinzima Vavi on Monday said delegates attending the federation’s congress this week should look inward and not focus on ANC leadership issues.
President Jacob Zuma will speak at the Gallagher Estate conference in Midrand, in what could be a key test of his support ahead of the ANC's elective conference in December.
Cosatu took a decision earlier this year that it would not speak on the ANC faction battles, as it did ahead of the party's elective conference in 2007.
Vavi said delegates attending the congress needed to focus on their own organisation.
"We need to address organisational challenges and we need to ensure we do not get divided over political squabbles or palace politics."
Vavi said unity is vital going forward.
The federation is anticipated to discuss the fallout in Marikana, and how it has affected the National Union of Mineworkers (NUM).
Lonmin miners from the North West province have not reported for work in almost six weeks.
They are demanding that mine management pay them a monthly salary of R12 500.
Their counterparts from the Anglo American Platinum mine downed tools last week Monday, also demanding better pay.
Also, there is no confirmation Vavi will face a challenger at the conference, but it appears Cosatu's KwaZulu-Natal provincial secretary Zet Luzipho may try and contest a leadership election.
Cosatu's conference will run from Monday to Thursday.