Heredia agreed to a contract with the SSG Landers of the Korean Baseball Organization on Tuesday, Francys Romero of beisbolfr.com reports.
Heredia was designated for assignment by Atlanta on Tuesday.
Heredia was recalled from Triple-A Gwinnett on Friday.
Heredia was optioned to Triple-A Gwinnett on Sunday.
Heredia went 1-for-2 with one homer, one RBI and one run scored in Tuesday's victory over the Athletics.
Heredia went 1-for-3 with a two-run home run, a walk and two runs scored Wednesday against the Mets.
Heredia is starting Wednesday against the Mets.
Heredia went 1-for-3 with a solo home run Monday in a loss to the Dodgers.
Heredia went 1-for-4 with a double, a walk, three runs and an RBI in Tuesday's 16-4 win over the Nationals.