CBSA report vs stamps/itineraries

[Munchenxx]

Hi all,
If one is sure of their travel dates and have proof to prove them (ex stamps in passport, itineraries, boarding passes, etc) but their cbsa entry/exit report shows different dates (+/- few days off), which dates does cic use?
Anyone with such an experience?

CIC will use CSBA data ,that is for sure.This is why ppl here try to wait one or two more weeks after 1095days has been reached before submitting their packages.