PSG, who signed Brazil striker Neymar for €222 million, also sealed an initial loan move for France forward Kylian Mbappe from AS Monaco in a deal media reports said would be worth 180 million euros when they buy him.
The club were cleared of breaking FFP rules last month following a UEFA investigation.
PSG cleared of breaching financial fair play rules
"In light of the decision of the CFCB chief investigator to close the investigation into PSG, the chairman of the CFCB has decided to send this decision for review by the adjudicatory chamber," UEFA said in a statement.
"This announcement does not pre-judge in any way the result of the review to be conducted by the adjudicatory chamber of the CFCB," it added.
FFP rules ban clubs from spending more than their generated revenue, a policy introduced to prevent rich owners from trying to buy success and distorting the transfer market.
Teams can be thrown out of European competition for breach of rules but UEFA has in the past negotiated settlements with offending clubs.
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