Head coach Rob Walter is happy with the progress the Proteas have made in the ODI series victory against Australia but will not get carried away ahead of the team's departure for the World Cup.
Jofra Archer joined England's practice session at the Oval on Tuesday, keeping alive prospects of him travelling to next month's World Cup as a reserve.
The Proteas' second fixture at the World Cup against Australia has been moved a day earlier after the Board of Control for Cricket in India (BCCI) announced changes to the initial schedule.
Former champions West Indies will not contest the 2023 World Cup after a seven-wicket defeat to Scotland in the qualifiers on Saturday.
The Proteas will kick off their 2023 World Cup campaign on 7 October in Delhi against a qualifier after the International Cricket Council (ICC) released the fixtures.