 The committee worked rapidly, and within it Weisser played a leading role in producing what became the detailed party manifesto proposal, presented at Hanover to the crisis wracked first postwar SPD party conference in May 1946.In 1950 Weisser finally accepted an academic post, becoming Professor for Social Policy and Communal Methods (""Sozialpolitik und Genossenschaftswesen"") at Cologne.Between 1954 and 1970 he also served as chairman of the Friedrich Ebert Foundation which had been relaunched after the war.