It worked for me, I had to upload a document and I selected "Replacement documents, Amendments to documents, and verification of status documents”
I could confirm later with their reply saying that the document had been added to my application, and even if I don't see it in my application I should rest assured that it is there. And if the purpose of it was only to upload a document so I should not wait for more replies from them.
My timeline:
AIP
New Brunswick
Outland
Applied for Work Permit on January 2023
Got BIL on the next day.
Biometrics collected 3 days later and got on their system at the same day.
So far I haven't heard of them (5 months already)
Applied for PR on April 2023
19 days later I got my PR returned due to the wrong type of ECA, instead of Immigration Purposes I sent the Academic Purposes.
It was an e-mail saying that my process got returned for missing documents according to the R10 and I would get refunded.
Got it corrected on the next day After calling WES and re-ordering my ECA but this time for Immigration Purposes.
I uploaded the soft copy of the ECA to the application and got the hard copy mailed to my address. (The soft copy works only if doesn't have water marks saying Not Official).
I used the same application fee receipt, I didn't needed to restart the whole process.
When I logged in my account it was highlighted in red what was wrong, which gave me the option to delete the wrong ECA and upload the right one.
Then I submitted it again on the very next day that they had returned my application.
23 days later I got my AOR with my PR application number.
I linked it to my GCKey account, now I have both Work Permit and Permanent Resident Applications there.
I managed to create an account for my Work Permit on the status tracker tool but so far I couldn't create one for my PR, I still don't know why.
I had to upload my Proof of Funds using the web form since I was waiting my bank to send me a bank statement signed by the manager of authority responsible. I used the WebForm under this option “Replacement documents, Amendments to documents, and verification of status documents” option since there isn't an option for AIP. Got a reply confirming that they received the document.
I hope that helps anyone