Tonight, Häcken was the last Swedish team to qualify for the newly composed tournament Conference League.
They got a tough draw where Aberdeen away waited in the first match.
And despite the fine form in the Allsvenskan, with four straight victories, it was a tough start for the yellow and blacks.
After 28 minutes, Andrew Considine put 1-0 to Aberdeen.
The 34-year-old got a really hard nod on a corner ball that went in behind Peter Abrahamsson.
Jeremejeff reduced
And just over a quarter of an hour later, Lewis Ferguson extended the home team's lead to 2-0 on penalties.
Eight minutes into the second half also came 3-0 and Häcken got a real uphill.
But just six minutes later came the reduction.
Alexander Jeremejeff came in front of goal and lifted in 1-3.
But Häcken did not come any closer than that.
In the 84th minute, the American Christian Ramirez put 4-1.
In extra time, Connor McLennan put 5-1, which was the end result.
The return meeting will be played on July 29, where a tough task awaits Häcken, who will find it difficult to move on.