In 1922, Purickis spent almost the entire year in Berlin trying to clear up the financial records. At the very end of the year, Prime Minister Ernestas Galvanauskas invited Purickis to participate in the Klaipėda Revolt of January 1923 and help Lithuanians capture the Klaipėda Region (Memel Territory), then a mandate of the League of Nations under temporary French administration. Purickis made declarations and explored possibilities of gaining Klaipėda Region was he was the Minister. Purickis was issued a fake passport under a Prussian Lithuanian-sounding last name Pėteraitis and helped rebels (mostly members of the Lithuanian Riflemen's Union) handle diplomatic aspects of the revolt – writing manifestos, negotiating with the French administration, organizing propaganda efforts, etc. Officially, he was the Lithuanian representative to the Directorate of the Klaipėda Region. The revolt was a success and Purickis was offered a job editing Lithuanian newspapers in Klaipėda Region, but refused and returned to Berlin.