Short answers, pulled from the story.
The political agreement for the Franco-Polish alliance was signed on the 19th of February 1921 by Count Eustachy Sapieha and Aristide Briand. A secret military pact followed two days later on the 21st of February 1921.
General Tadeusz Kasprzycki and Commander Maurice Gamelin signed the convention on the 19th of May 1939 in Paris. This agreement obligated both armies to provide help if war broke out with Germany.
France refused to invest in Polish industry or share military expertise during these years due to doubts about the trustworthiness of the Polish army. These economic and military hesitations weakened Czechoslovakian influence regarding a potential triangle alliance.
The alliance effectively ended when the Second World War began because France provided only token help through the Saar Offensive. Foreign Minister Georges Bonnet wrote that their agreement contained gaps needed to keep France away from war.
Both agreements remained legally inactive until the economic pact was ratified on the 2nd of August 1923. Registration of the political treaty occurred on the 2nd of July 1923 under document number Dz.U. 1922 nr 63 poz. 563.