M'Changama was born in the city of Marseille to Comorian parents and developed an interest in football at a young age alongside his younger brother Youssouf.
[1] The elder M'Changama struggled to make the grade among clubs situated around the south of France and, ultimately, considered giving the sport up.
[1] On the other hand, M'Changama's younger brother Youssouf drew interest from several professional clubs and eventually signed a youth contract with Sedan.
[3] M'Changama was praised for his contribution in the match against Istres by Cavalli and, subsequently, began training with the senior team on a regular basis.
While shopping at the mall, he was informed by one of the assistant coaches by phone that he would be needed for the Troyes match due to backup striker Madimoussa Traoré developing an illness during warm-ups.