New Zealand produced a clinical performance to defeat Zimbabwe by 60 runs, recording the highest total of the tri-series and sealing their place in Saturday's final against the Proteas.
The Proteas slipped to a second defeat against New Zealand in the T20I tri-series in Harare after going down by seven wickets on Tuesday in what was a dress-rehearsal for the tournament's final.
New Zealand made it two wins from two in the T20I tri-series in Harare after dispatching host nation Zimbabwe by eight wickets on Friday.
New Zealand all-rounder Glenn Phillips has been ruled out of the T20I tri-series in Zimbabwe involving the Proteas and the subsequent Test series after sustaining a groin injury.
The Proteas suffered a defeat in their second T20I tr-series clash in Harare following a 21-run loss to New Zealand on Wednesday.
Proteas head coach Shukri Conrad has named his 14-player squad for the upcoming T20 International tri-series against hosts Zimbabwe and New Zealand, set to take place in Harare from 14-26 July.