all that's missing is
Le dossier est fait, il ne manque que ta signature.
The file is ready, all that's missing is your signature.
Il ne manque que la sauce au piment.
All that's missing is the chili sauce.
— Cemetery of Splendour (2015)
Il ne manque que le moyen de s'y rendre.
All that's missing is a way to get there.
— Le Cinquième Élément (1997)
Le chef est en réunion dans son bureau et il ne manque que vous.
The boss is in a meeting in his office, and you’re the only one missing.
— Taxi (1998)