IRCC uses the applicant’s current residential address on file to determine if they are already in Canada or not. If this information shows the applicant to be in Canada, IRCC will be sending you the P1 and P2 emails otherwise; you will be receiving PPR (Passport Request).
Note that if for any reason, the applicant happen to come Canada before you receive PPR, you’re expected to notify IRCC via webform so that address on file will be updated. Good luck!
