The European and South American governing bodies released a joint statement saying the game was planned "during the international window in June 2022 at a venue to be confirmed."
A "new phase of consultation" will start with organisations representing players, clubs, leagues and the six continental governing bodies, FIFA said Monday in a statement.
Atlético said De Paul joined the club on a five-year contract. He had been with Italian club Udinese since 2016.
Copa America 2021: Lionel Messi dedicates Argentina's title triumph to family, nation and late Diego Maradona
Argentina's success over the Brazilians in Rio was not just Messi's first major trophy for the Albiceleste but his country's first continental honour in 28 years.
Super Sunday: Messi's dream fulfilled, Djokovic joins '20' club, Italy inflict pain on England to clinch Euro title and more
Check out photos from the Super Sunday blockbuster in sports, as Lionel Messi ended his long wait, while Italy broke England hearts in Euro 2020 final at Wembley.
Ángel di Maria scored the winning goal for Argentina in the 22nd minute.
Copa America 2021: Messi vs Neymar as Argentina and Brazil collide in battle for continental supremacy
Former Barcelona teammates Lionel Messi and Neymar will line up opposite each other in Saturday's Copa America final looking to end a hoodoo that has also affected some of their countries' greatest players.
Copa America 2021: Rio de Janiero to allow fans to attend Brazil-Argentina final in Maracana Stadium
This would make it the first match in the 2021 Copa America, South America's largest international football tournament, with fans in the stands.
Copa America 2021: Emiliano Martinez's heroics help Argentina edge Colombia on penalties, set up final with Brazil
Argentina won their semi-final against Colombia 3-2 on penalties after three saves by goalkeeper Emiliano Martinez. Regular time ended 1-1 at the Mané Garrincha Stadium in Brasilia on Tuesday.
Copa America 2021: Brazil forward Gabriel Jesus to miss final after receiving red card in quarter-final clash
Manchester City's Jesus was dismissed for a foul on Eugenio Mena in Brazil's 1-0 quarter-final win over Chile on Friday.
The pandemic, the last-minute hosting, some unimpressive matches, and the fact that the most popular broadcaster is not showing Copa America have cut down the fans' interest.
Copa America 2021: Argentina banking on in-form Lionel Messi to find answer to David Ospina's Colombia
Beat the impressive Ospina and Colombia, and Argentina will take on Brazil in Saturday's decider. The hosts beat Peru 1-0 on Monday and star Neymar ended a news conference by saying he wanted to face Argentina in the final.
The Selecao will play either Lionel Messi's Argentina or Colombia, who meet in Brasilia on Wednesday, in Saturday's final at Rio de Janeiro's iconic Maracana stadium.
Messi has so far scored four goals and assisted four in the tournament.
Copa America 2021: Lionel Messi inspires Argentina to 3-0 win over Ecuador, will face Colombia in semi-finals
Messi scored from a late freekick and earlier laid on two assists as Argentina eventually subdued Ecuador.
Copa America 2021: Goalkeeper David Ospina stars as Colombia edge Uruguay on penalties to reach semi-finals
Colombia are aiming to win their first Copa America title since 2001.
Copa America 2021: Lucas Paqueta's strike helps ten-man Brazil beat Chile, set up semi-final with Peru
Peru punched their semi-final ticket by beating Paraguay 4-3 on penalities after playing to a 3-3 draw in regular time in Goiania.
The 36-year-old Silva continues to start matches for Brazil, and lifted the Champions League title with Chelsea in May.
Copa America 2021: Uruguay beat Paraguay to set up quarter-final clash against Colombia; Chile to face Brazil
Also, Argentina will meet Ecuador in the quarter-finals while Paraguay will take on Peru.
Messi's 148th appearance for Argentina beat the mark previously held by retired defender Javier Mascherano.