DragTA

make sure preferences are entered into assignments google sheet, using exact same coursecode for course as in courses google sheet
make sure google sheet ids for assignments and courses for next term are in source_data/config/google_data.yaml (or put in by hand into dragTAApp.js)
in source_data/config/google_data.yaml, update google sheet ids for assignments and courses for next term

in _data/const/course_listing_term.yaml, update course terms to be displayed (TODO: make this autoupdate)

Possible errors:

make sure spreadsheet ids have been updated
clear the cache and reload dragTA page
students are coded by fsuid, so make sure fsuids in google sheet are correct and not duplicated
make sure that anyone with link can edit the 2 spreadsheets