"Soobrazitelny"'s first combat operation was the Raid on Constanța, which aimed to disrupt Axis supply lines. She was initially planned to bombard the port together with her sister and the destroyer leader , but both Project 7U destroyers instead formed part of the support group with the cruiser . After leaving Sevastopol on the night of 25/26 June, the ships of the support group lost sight of each other in the darkness and only at dawn did "Soobrazitelny" catch up with "Voroshilov". She escorted the damaged "Kharkov" back to Sevastopol, fending off an attacks by two lone bombers and depth charging what was erroneously thought to be a submarine, which was claimed as sunk.