The Stadium of Light outfit admitted the charge, which relates to the reaction to referee Lee Mason's decision to award a penalty for Everton after Seamus Coleman went down under a challenge from Connor Wickham.
Sunderland players surrounded Mason to argue Wickham had won the ball as he slid in on the Republic of Ireland right-back.
Leighton Baines scored the resulting spot-kick to ensure Roberto Martinez's side salvaged a point on Wearside earlier this month.
A statement from the FA read: "Sunderland have admitted an FA misconduct charge and accepted the standard penalty of £20,000 following their game against Everton on 9 November 2014.
"The club was charged for failing to ensure its players conducted themselves in an orderly fashion in the 76th minute of the game."
‘I don’t think Liverpool would look at Ollie Watkins, a striker isn’t a pressing issue for them – it’s Arsenal who need one’ Former Reds star explains why his old club don’t need an out-and-out forward this summer
‘He’ll still be playing at 40 at a good level because he’s in such good shape and looks after himself so well. He does everything to be a top professional’: Ex-Liverpool coach insists Mohamed Salah has plenty more miles in the tank
