John Carver and Graham Barrow have each been fined for their conduct in the wake of Callum McManaman's challenge on Massadio Haidara.
Newcastle number two Carver has received an undisclosed cash penalty and been warned as to his future conduct, while Wigan counterpart Barrow has been ordered to pay ?1,000 and will serve a one-match touchline ban.
The pair were charged with misconduct by the Football Association in the wake of Wigan's controversial 2-1 home win over Newcastle on March 17.
Tempers flared after Haidara had been caught by McManaman with a tackle which saw the defender carried from the pitch on a stretcher.
Match referee Mark Halsey took no action at the time and FA chiefs declined to take retrospective action because one of the match officials had seen the incident clearly and decided it did not warrant punishment.
A Newcastle statement confirmed: "Newcastle United assistant manager John Carver has been fined and warned as to his future conduct as a result of the charge brought against him by the Football Association following United's match at Wigan Athletic on 17 March 2013."
Barrow's punishment was confirmed in a Wigan statement, which said: "First team coach GB has been fined ?1,000 and given a one match touchline suspension with immediate effect after accepting an FA charge of misconduct following an incident at half-time in the match against Newcastle United at the DW Stadium on March 17."
