Hearts head coach Robbie Neilson is facing a Scottish FA hearing after being sent to the stand during their 2-2 draw with Rangers at Tynecastle.
He has been accused of using offensive, insulting and abusive language and issued with a notice of complaint by the SFA compliance officer.
Hearts have made no comment other to acknowledge the notice and the fact they have until 14 May to respond.
A hearing date has been set for 11 June.
Neilson was dismissed by referee Calum Murray shortly after Hearts had a penalty claim rejected when Osman Sow went down under a challenge from referee Cammy Bell late in the first half on Saturday.
After the game, Neilson said: "To be honest, I don't think it was a penalty.
"There were a few other things building up before that that I thought were dubious to say the least.
"It was the first time I've been sent to the stand for shouting at an opposition player."
The match against Rangers was the Edinburgh side's final fixture of the season.
They had already won Scottish Championship title and promotion to the top flight.