Hearts manager Paulo Sergio is facing the prospect of an extended touchline ban following his dismissal from the dugout on Saturday.
The standard penalty for such an offence is a two-match suspension.
However, Sergio's heated response to his sending off has prompted a notice of complaint from the Scottish Football Association's compliance officer.
Sergio will have the chance to explain his behaviour at an SFA hearing on 17 November.
Sergio is alleged to have breached rule 203, which relates to misconduct by a member of team staff, including acts such as continued use of offensive, abusing or insulting language or behaviour and adoption of aggressive behaviour towards a match official.
The Portuguese is due to appear at an SFA hearing on Thursday, which will deal with comments made about referee Iain Brines.
Sergio was critical of Brines for disallowing a goal in a League Cup defeat to Ayr United and later questioned his appointment as assistant referee for Hearts' league visit to Dunfermline.