Steve Bruce has escaped further punishment for his weekend sending-off.
The Hull manager was sent to the stands during his side's 3-1 defeat at Leicester after disputing a late throw-in decision.
But he was quick to apologise for "going on like an idiot", and the FA is happy to leave it there.
A spokesman said: "There will be no process against Steve Bruce. He will be sent a warning, a reminder of his responsibilities."