All information about students is brought in Pure from student records system, Banner. We have imported data into Pure relating to individuals who were enrolled as students in the 2007-8 academic year and afterwards. Historic data going back further than this is impractical to include for technical reasons, but you are of course free to mention specific former students in the free-text section of your Pure profile.
If any of your current students are missing, or if you find errors in Pure related to students you supervise, please contact your departmental administrator in the first instance to check that the Banner records are correct. If they are, please contact the Pure helpdesk at firstname.lastname@example.org for assistance, copying in your departmental administrator.
Please consult Pure support pages on student data in Pure for more information.