Quins flanker Will Skinner was sent off during the closing stages of the 31-24 victory by referee Alain Rolland as, after being substituted earlier in the game, he prevented Toulouse from taking a quick throw as they desperately sought a late score.
Skinner was subsequently handed a two-week ban for "an act contrary to good sportsmanship", but a European Rugby Cup investigation into other incidents in the Harlequins' technical area during the game decided that no further punishment was required after the Aviva Premiership club took internal disciplinary action over the matter.
But Harlequins have been warned over the future conduct of their staff and players in and around the technical area.
An ERC statement read: "Harlequins co-operated fully with the investigation, and following internal disciplinary action taken by the club, ERC's disciplinary officer, Roger O'Connor, has decided that no further action is required.
"However, the club has been warned as to the future conduct of its staff and players in and around technical zones."
Gilbert has released a new line of rugby cleats. The Gilbert Virtuo 8S is part of the exciting new product. Check it out.
The entire All Blacks apparel line has been updated for 2013/14. Check out the New Zealand All Blacks polo.
The Nike Tiempo is a solid rugby cleat and one of few styles still made from full-grain natural leather.
The Gilbert Blitz 8S rugby cleat is a great cleat at a great price of $69.99. Get a new pair of cleats today.
A cool looking all black rugby cleat with the high performance adidas is known for. Get in the Gear!
Wear the crest of the British and Irish Lions on your t-shirt. A great look for the summer.
$29.99
The All Blacks Performance t-shirt is black with hints of blue from the training jersey. Very Cool.
The New Zealand All Blacks training jersey for 2013/14. Get in the Gear!
The USA Rugby Pro Alternate rugby jersey is perfect for any fan of the Eagles. Get yours to wear during the summer Test matches.
The NEW All Blacks 2013/14 jersey has arrived at World Rugby Shop. Dare to wear the colors of the All Blacks.
