You MUST meet the minimum entry requirements at the time of the ITA (e.g. the one year of work experience).
For the purpose of CRS points ,they will calculate them at the time of the ITA AND at the time you submit your eAPR. As long as your CRS score is above the cutoff for your draw at either time, the ITA will be considered valid.
jes_ON, kindly respond to me query once more. You said that, "As long as your CRS score is above the cutoff for your draw at either time" But as per the link, I should be eligible during both times?