Please note Aeroplan Miles will not be earned on purchases made on Costco.ca between January 22, 2018 and February 18, 2018.
Members will be able to receive Aeroplan Miles again for their online purchases starting February 19, 2018.
It appears a new Aeroplan miles promotion will begin at costco.ca beginning February 19, 2018. So if you were planning to make purchases online at costco.ca then I would suggest to hold off till February 19, 2018. The last promotion that ran between Dec18 and December 29, 2017 offered 4x Aeroplan points.