Scola, a 6-foot-9 forward from Argentina, played his first five NBA seasons with the Houston Rockets before coming to Phoenix a year ago when the Suns submitted the winning bid under the league's amnesty rule. He appeared in all 82 games for the Suns, averaging 12.8 points and 6.6 rebounds. It was the fifth time in his career that he's played in all games.
The 6-foot-8 Green has played for six teams since coming to the NBA in 2005. The 6-11 Plumlee was selected in the first round by the Pacers last year, the 26th selection overall, but appeared in only 14 games.
ESPN.com's Marc Stein reported Friday night that Green's contract would be the centerpiece of the trade for salary-matching purposes with Scola's $4.5 million salary next season.
The priority for the Suns, though, was acquiring another future first-round pick, as new Phoenix general manager Ryan McDonough seeks to rebuild the team through the draft.
The Pacers had shown interest in Scola dating to his days with the Houston Rockets and have made it clear since a Game 7 loss to the Miami Heat in the Eastern Conference finals that they would try to do anything they could to close the gap.
Scola has averaged 14.2 points and 7.5 rebounds in six NBA seasons.
Information from ESPN.com senior writer Marc Stein was used in this report.