It depends what you mean by "whole process". But my guess is they will not look into it before you have your eCOPR. Having eCOPR technically means that you virtually landed and you are now a PR. So they would not start to make your card before you become a PR.
I advise you to not leave Canada until you get your PR card.
Thanks for your advice
You can leave but in order to come back without a card, you will need to ask for a PRTD from the visa office abroad.
I am sorry to hear your situation hopefully your grandfather recovers soon, from what i have heard and read, even if you do have an Ecopr and not the PR card or the PRTD you can still come back by road. So if i were in your position, on my way back I would fly to states and then drive across the border. As long as you have Ecopr and a Canadian ID the border officer will let you come back to Canada by road ONLY.
You have some options. Rescheduling your flight to an earlier date is one option. Another one could be to just wait until you return to reply. And a third option would be to reply stating you are out of the country and specify your return date. For the third option IRCC would respond informing you that they will pause the portal confirmation until you return.
Which option is more preferable? Do I need to upload web form when, I reach to Canada and mention them about my travel?
