(1) eduPerson Object Class Specification (201602): https://wiki.refeds.org/pages/viewpage.action?pageId=44957738
There is a minimum amount of attributes to supply when you connect your IdP to SURFconext. For a list of which of these attributes are required for proper operation, please see on this page , or the explanation in the configuration manuals on the page (Dutch) 'Handleidingen en Richtlijnen'.
SURFconext considers the attributes nlEduPersonOrgUnit, nlEduPersonStudyBranch and nlStudielinkNummer deprecated. When you register a new IdP or SP at SURFconext, these attributes will not be allowed for use with SURFconext. Existing IdP's and SP can use these attributes until further notice.