The French Air Force found a use for the Potez 633 aircraft as conversion trainers for units that had received the Breguet 691 attack aircraft. On 20 May 1940, three Potez 633s took part in a strafing mission against German troops near Arras. This was the type's only operational mission over France as two days later the aircraft was withdrawn from front-line service. A small number of Potez 633 originally destined for China were commandeered by the French colonial administration in Indochina and saw limited action in the brief French-Thai War in early 1941. Parked in the open ground, a number of them were destroyed by Thai Hawk 75N strafing during air raid at Siem Reap.