Kitegi, C.A. Cappadoro, P.L. Chubar, O.V. Corwin, T.M. Fernandes, H.C. Harder, D.A. Hidas, D.A. Licciardi, W. Musardo, M. Rank, J. Rhein, C. Tanabe, T. JACoW Geneva, Switzerland 978-3-95450-180-9 10.18429/JACoW-NAPAC2016-WEPOB57 English 1018-1020 WEPOB57 ion undulator MMI insertion-device insertion Contribution to a conference proceedings 2017 2017-01 http://dx.doi.org/10.18429/JACoW-NAPAC2016-WEPOB57 https://jacow.org/napac2016/papers/wepob57.pdf The Soft Inelastic X-ray scattering (SIX) and the Elec-tron-Spectro-Microscopy (ESM) are two beamlines under construction at National Synchrotron Light Source-II (NSLS-II). The specifics of these two beamlines requested the use of two long Advanced Planar Polarized Light Emitter-II (APPLE-II) undulators, as a source that provides circularly and vertically polarized radiation. Thus we designed 3.5 m and 2.7m long APPLE-II type undulators for SIX and ESM. The NSLS-II ID group is responsible for the magnetic optimization of these two long undulators. In this paper, we first summarize the APPLE-II magnetic and mechanical design. Then, we discuss the magnetic performance of the first APPLE-II achieved with the shimming performed at BNL.