Mbappé activated a release clause to join Real Madrid on a free transfer after seven years at PSG, following tense negotiations and legal threats from both sides.
PSG claimed he waived payments in a letter he later ignored, but the court sided with him on core labour law issues, rejecting larger claims like €263 million.
The club plans to pay promptly while considering an appeal, highlighting French protections for even top players.
French champions now accept they are bound to pay under the technicalities of French labour law.