Gordon Strachan's appeal against a four-match touchline ban will be heard by the Scottish Football Association's disciplinary committee on September 25.
The Celtic manager was sent to the stands by referee Stuart Dougal during the home SPL match against Hearts on April 29.
As Hearts substitute Neil McCann waited to come on for Saulius Mikoliunas, moments after Michal Pospisil had scored Hearts' third goal in a 3-1 win, Strachan appeared to whisper into the former Rangers player's ear, prompting Dougal to send him to the stand.
Strachan served a two-game ban for a separate incident in an earlier game against Hearts in August 2006, and SFA rules dictate that a second offence, if proven, will result in a four-game suspension.
Strachan launched his appeal before last season's Scottish Cup final but has had to wait to have his case heard. It had been scheduled for August 21 but was postponed when Dougal was unavailable to attend.
Once the outcome of the appeal is known, the SFA will be able to set a date for Strachan's challenge to the decision to order him away from the touchline in last month's game at Aberdeen.
Strachan was sent to the stands by referee Charlie Richmond following an argument with an Aberdeen official in the August 19 Clydesdale Bank Premier League match at Pittodrie.
Celtic coach Tommy Burns revealed manager Strachan had been defending Garry Pendrey following accusations his assistant had made a rude gesture to the Aberdeen fans behind the dugout.
If Strachan fails to overturn the four-match ban for the Hearts incident, the Aberdeen incident would become a third offence and could result in a further six-game suspension.