Sierra Leone have been disqualified from Caf Women's Olympic qualifier preliminary round, while Angola have withdrawn.
The expulsion of the west Africans was due to the suspension of the country's FA by Fifa and the development sends Cote d'Ivoire to the next round of qualifiers.
In a Caf statement, Angola pulled out of the competition for unconfirmed reasons - meaning Zambia have taken their place in the second round.
Despite the two nations' exit, other preliminary stage's ties will go ahead in April 2019, with both legs scheduled hold between April 1-9.
After the fifth round in November 2019, two African sides will battle for a spot in Tokyo with one qualifying automatically, while the other face a CONMEBOL side in a play-off.