Russell Domingo will remain in charge of South Africa for the Champions Trophy and their tour of England after having his contract extended until August 2017.
Domingo's position was under scrutiny earlier this year as the Proteas crashed out of the World Twenty20 at the Super 10 stage, prompting Cricket South Africa to launch a "National Team Review" that is set to be resurrected after a panel featuring Rugby World Cup-winning captain Francois Pienaar was disbanded.
Recent successes have strengthened Domingo's hand, however, including a 5-0 ODI series win over Australia which handed Steve Smith's side the country's first whitewash loss in their history.
"As part of the domestic cricket review, we are currently evaluating the entire coaching framework in South Africa and the board believed the best approach at present was to extend the tenure of Mr Domingo until the end of the England tour in 2017," CSA chief executive, Haroon Lorgat, said in a statement.
"Naturally the performances of the Proteas was a key factor in the board's unanimous decision.
"The recent 1-0 Test series win against New Zealand and the impressive 5-0 win in the ODI Series against world champions Australia, resulting in us being the first nation to achieve a clean sweep against them, were noted."
Domingo, 42, took over as coach in May 2013 following the departure of Gary Kirsten.
Team manager Mohammed Moosajee has also had his deal extended over the same terms.