How do you know you have been accepted to enter Canada as a Permanent Resident?
Getting an immigrant visa does not make you a permanent resident.
Not just yet.
You local Canadian visa office which requested for your passport’s submission, must have returned your passport with a page stamped to authorize your entry into Canada. Along with this, the visa office must have sent you a paper form called the Certificate of Permanent Residence (COPR). This does not make you a permanent resident yet, but it makes you eligible to enter Canada for permanent residency.
Once you enter a port of entry, either through a Canadian international airport or a land crossing, you must present your stamped passport and the COPR to a Canada Customs and Border Security officer. The actual physical admission to a Canadian point of entry activates your permanent residency status.