After every round of ModReg exercise, the officially released student enrolments are uploaded to EduRec. Only these officially released enrolments will be synced to Canvas during the daily sync. Please note that students cannot be added to Canvas until after the Modreg exercise is complete, and the Edurec Sync from ModReg happens.
The Module appeals process also works in a similar manner, and student enrolment information is only synced after the appeal process is completed.
This process is similar to what it was in LumiNUS, and there are no changes to the time taken to sync to Canvas.