Chelsea booked their spot in the Women's Champions League league phase after a 1-0 win over Real Sociedad in the second leg of their third qualifying round tie.
The Blues sealed a 6-2 aggregate victory during a lacklustre match in Spain, which saw Keira Walsh score the only goal of the game in the 54th minute.
The England midfielder's strike subsequently secured Chelsea's place in Friday's draw for the league phase of the competition.
Blues boss Sonia Bompastor made four changes to the side that won 5-2 in London last week, with Lucy Bronze, Kadiesha Buchanan, Lexi Potter and Wieke Kaptein all starting.
Ellie Carpenter caused problems in the early stages of the first half by sending a series of teasing crosses into the box.
Lauren James blasted the ball past the post and Walsh latched onto another brilliant cross from Carpenter, but Julia Arrula easily saved before being called into action to deny Carpenter.
With the score goalless at half-time, Giulia Dragoni was introduced after the break to make her Chelsea debut.
Aggie Beever-Jones had the best chance of the game 53 minutes in after being played through by Carpenter and her strike was palmed away by Arrula.
However, from the resulting corner Chelsea suddenly opened the scoring from a short routine which reached Walsh outside the box and the midfielder curled the ball home.
Hannah Hampton pushed Ainhoa Marin's strike behind for a corner as Sociedad enjoyed a brief threatening spell.
Nelly Las dragged a shot wide for Chelsea, who comfortably navigated the closing stages of the match to reach the league phase.
Chelsea boss Sonia Bompastor speaking to the club's official website:
"I'm pleased with the result. We kept a clean sheet, which is always important, and when you do that, you always have a bigger chance to win games.
"I'm glad we could rotate the team with the starting 11, but also the players who came in.
"I think today we gave some really good opportunities to the young players to come and experience a Champions League game, so when you have the opportunity to do that, I think it's always something really positive.
"I'm happy and really excited now to be in the Champions League this season. The goal was for us to qualify, which is what we have done.
"People will probably think when you are Chelsea, it's easy to do, but we played against a really strong team in Real Sociedad.
"Over the two legs, they showed some really good quality, and I think these two games are a really good preparation for us to come into the season in the league."
