Have applied for permanent residence AND have a Canadian Government issued Unique Client Identifier number (UCI). This number is found on all official documents received from Immigration, Refugees and Citizenship Canada (IRCC). It can be 8 or 10 numbers long (Example: 1111-2222 or 33333-44444).
PLUS you must provide one of these Government of Canada issued official documents:
Invitation, sent via IRCC, to obtain pre-arrival services;
Confirmation of Permanent Residence (COPR) letter/document;
Passport request letter that indicates Permanent Resident visa issuance;
IRCC request that an applicant for permanent residence complete medicals;
Single Entry Permanent Resident Visa; or
Permanent Resident Visa pick-up notification letter.