Turkey qualified as best third-placed side after a last gasp 1-0 win over Iceland on Tuesday.
Turkey's Selçuk İnan curled in an 89th-minute free-kick for victory over Iceland to send the Turks to France as best third-placed team.
Turks avoided the play-offs and qualified as the best third-placed team after Kazakhstan also defeated Latvia to finish in fifth position right above Latvia .
Turkey finished behind the Czech Republic and Iceland in Group A but above the Dutch, who needed a win and a Turkey defeat to qualify.
With the final group matches, 20 teams have qualified for the tournament in France next year - hosts France, title holders Spain, England, Italy, Belgium, Iceland, Austria, Portugal, Switzerland, Czech Republic, Wales, Northern Ireland, Germany, Poland, Albania, Romania, Russia, Slovakia, Croatia and Turkey.
Next month's play-offs will decide the remaining four places for which Sweden, Slovenia, Ukraine, Denmark, Ireland, Norway, Hungary and Bosnia-Herzegovina will compete for. The draw for the play-offs is on Sunday.