CMCn2020 The Max-Planck-Institut für Eisenforschung in Düsseldorf is organizing the 7th International Symposium on Computational Mechanics of Polycrystals and we would like to invite you and your research colleagues to participate in this event. This symposium is part of a biannual series of symposia that originated with the establishment of the first joint research group formed between the Max Planck Society and the Fraunhofer Society and investigating Computational Mechanics of Polycrystals. This year the symposium is again combined with the DAMASK User Meeting. DAMASK is the multi-physics simulation software developed at MPIE. The symposium will take place on September 14th and 15th, 2020 in the Max-Planck-Institut für Eisenforschung at Max-Planck-Straße 1, 40237 Düsseldorf, Germany.The DAMASK User Meeting will be held on the following two days, September 16th and 17th at the same location.