If this happens on your campus, the PeopleSoft administrator should restore the missing sessions (using data from a backup, for example) and then create a new set of SAIP extract files to be placed on the Kimono server. At that point, the next nightly Peoplesoft to Canvas data transfer will restore impacted users' Canvas enrollments. The campus Canvas administrator can speed this up by
requesting a manual SIS data integration into Canvas, which will restore enrollments early.
After enrollments are restored and verified in Canvas, the PeopleSoft administrator can move courses out of the impacted session and into sessions which will not be deleted.