Wales lost out to favourites Portugal in the final of the FIRA-AER European Sevens Championship in Hannover.
Gareth Baber's side progressed to Sunday's Cup showpiece but were beaten into second place by top seeds Portugal 26-12.
Previously Wales beat Poland 38-0, Ireland 26-14, Ukraine 21-17 and Italy 33-12 on Saturday to qualify with a day to spare, however Baber's team, core members of the IRB Sevens World Series, didn't have it all their own way.
Wales trailed at half-time against Ireland in their second match and then needed Gareth Chapman's try to deny Ukraine a famous victory after they had fought back from 14-0 to lead 17-14 with tries from Jaba Malaguradze, Ruslan Tserkovniy and Giorgi Todradze.
Wales were convincing 33-12 winners over Belgium and fought their way to a 19-14 victory over Georgia on Day two en route to the cup final.
England's preparations for the Autumn International series were potentially dealt a further blow as Maro Itoje was forced to undergo an x-ray after Saracens' European victory over Scarlets on Saturday night.