What actually happens between getting the ITA and landing as a PR — how long is that stage?

Congrats! Broadly: you submit your e-APR (electronic application for permanent residence) with all supporting documents within the deadline on your ITA, then biometrics, medical exam, and police certificates get requested/verified, then a final decision. The exact document list and order matters a lot here and mistakes cause real delays — /guides/pr/express-entry-steps walks through the full sequence document-by-document.