Coach Joseph Mkhonza says South Africa's women will leave nothing to chance in Ethiopia in the second leg of the Olympic Games qualifier.
Banyana Banyana have a 3-0 cushion from the first leg and need just a draw or narrow defeat in Addis Adaba on Sunday to qualify for London.
But Mkhonza says they are not ready to repeat the mistake that cost them a place at this year's World Cup.
"We lost in the semi-final of the Africa Women's Championship, which was only a game away from qualifying for the World Cup," he told BBC Sport.
"This time round we will do our job to make sure we qualify," he added.
Despite taking part in the on-going All Africa Games in Mozambique, South Africa are sending the best team to Ethiopia, as qualification for the Olympic is their priority.
''The Olympics to me and to the squad is second to the World Cup, and we must make sure we are there,'' said the coach.
''We have a bigger pool of players such that in one position we have more than three or four players, which is good for the country.''
Former African Women's Footballer of the Year Noko Matlou, who scored a hat trick in the first leg, and captain Amanda Dlamini are back with fresh experiences, after participating in the recent World Students' Games in China.
But the team will miss the services of US-based Kylie-Ann Louw, who the coach says was released too late by her club.
''She has to travel for more than 17 hours and when she arrives we will have left. We don't depend on individual players, we are a team'' said Mkhonza.
The other African spot at the Olympics will be decided between Nigeria and Cameroon, with the Nigerians leading 2-1 from the first leg.
It has been agreed that the second leg will take place on 22 October to allow the Cameroonians to play at the All Africa Games.