The Potez 633 aircraft that were exported to Greece and Romania saw greater service than their French counterparts despite their limited numbers. Greece had nine Potez 633s in service when Italy invaded Greece in October 1940. These were used for bombing attacks against Italian supply lines until shortage of spares forced their withdrawal. In June 1941, Romania joined Germany in the invasion of the Soviet Union. Two squadrons were equipped with the Potez 633 which were used to support the Romanian army as it advanced towards Odessa. In 1942, they were replaced by Junkers Ju 88 bombers, allowing the survivors to be transferred to the advanced training role.