Crystal Palace booked their spot in the league phase of the Conference League despite an unconvincing showing in the second leg of their play-off tie against Fredrikstad.
Jean-Philippe Mateta's goal in the first leg at Selhurst Park proved the difference on aggregate as the English Premier League side struggled to make much of an impression in Norway.
He had the best chance in added time when he burst clear, but his shot was blocked by the outstretched leg of home keeper Martin Borsheim.
Just as they had done in the away tie, Fredrikstad defended well, but their attitude was markedly different this time, being much more positive and attempting to cause problems for the Palace defence.
But, luckily for Oliver Glasner's men and on the Austrian manager's 51st birthday, the home side's improved attacking efforts lacked any edge and rarely looked like threatening keeper Dean Henderson.
They did create a wonderful opportunity, but Stiane Molde was unable to turn into an near empty net after Henderson failed to catch a ball in the six-yard box.
Substitute Henrik Skogvold also fired wide in added time as Fredrikstad made a late push.
While it was another underwhelming performance, Glasner's side are now 13 games unbeaten in all competitions, equalling their club record as a top-flight side.
The success also earned Palace, who dropped down to the Conference League after their demotion from the Europa League for breaching multi-club ownership rules, a first appearance in the group stage of a European competition.
They will find out their opponents on Friday, following the Europa League draw which takes place at 12:00 BST.