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When logging into the system (e.g. https://gitlab.eufus.psnc.pl), choose AD Active Directory at IPP. You have to use the same credentials as if were trying to log in into into https://ims.euro-fusion.org or https://idm.euro-fusion.org. Once you have logged in there is a one time step allowing you to link your accounts. In here, you need to provide your e-mail address you have used for EUROfusion Software Stack services. The very same you use for logging into: https://gitlab.eufus.psnc.pl.
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