How is a study permit document number different from a UCI?
Short answer: A UCI is your unique client identifier, also called a client identification number or client ID. IRCC's help page What is a UCI? says it appears on official documents and has either four numbers, a hyphen, and four more numbers (0000-0000) or two numbers, a hyphen, four, a hyphen, and four more (00-0000-0000). First-time applicants who do not have a UCI yet write "Not Applicable" or "N/A," or leave the field blank if the online form blocks N/A. The study permit document number is longer, has no hyphens in the usual printout, and belongs to that permit only.
Work permits use the same document-number idea on their own IMM form. If a portal asks for a work permit document number, use Canada work permit document number, not the study permit code.
When do you need a study permit document number?
Short answer: You need it when a form asks for the current permit's document number. Typical uses: school enrolment, a Social Insurance Number (SIN) interview, a change of schools file, a study-permit extension, or a Post-Graduation Work Permit application. Banks and landlords sometimes ask for it as well. They want the number on the permit you hold today.
If IRCC is still processing your first study permit, you do not have a document number yet. Use the application number in the account until the permit is issued. Application packages for students in Canada are listed on IRCC's study permit application page.
We are Go Far Global, a licensed Canadian immigration firm. If a school or IRCC form is rejecting the number you entered, book a consultation and bring a photo of the full IMM 1442, including the top-right block.
Keep a colour scan of both sides (or the full PDF). You will need the same number again when the permit is close to expiry.
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