Start with the correct channel
IRCC directs applicants to check their status and use the appropriate contact or update process. Its Help Centre says to report changes to your situation through the web form, even after an online application. Follow any specific document-request instructions you receive.
Prepare one clear update
Before contacting IRCC, write a short description of the change and list the supporting files you intend to provide. Check names and dates against your records. Keep sensitive identifiers in your private application documents, rather than a public sharing link or task title.
Record what actually happened
Keep the submission date, channel used, confirmation received and any requested follow-up in one private log. In PRTrack, add a neutral reminder such as “Review official account messages”. Marking a task complete records your action; it does not confirm IRCC has reviewed the update.