This result saw Barcelona finish fifth in the league standings with 16 points, securing a direct qualification to the round of 16.
Meanwhile, Copenhagen had to be satisfied with 31st place with eight points, as reported on the official UEFA website.
Playing at home, Barcelona got off to a poor start. Jules Kounde's misplaced pass in midfield allowed Viktor Dadason to pounce on the ball, breaking into the penalty area. His shot was blocked by Joan Garcia, giving Copenhagen the lead.
Trailing by a goal, Barcelona increased their attacking intensity. Robert Lewandowski had a golden opportunity in the 15th minute, but his shot was saved by goalkeeper Dominik Kotarski.
