I just did my 90 days report (TM47) online. However, I didn't save the application number or take a screenshot before the window got closed by the browser.
Will I get some kind of confirmation once my report has been approved?
TLDR : Answer Summary
After submitting your 90 days report (TM47) online, you should receive some form of confirmation once your report has been processed. If you did not save your application number, you can check the status of your application by entering your passport number in the system to see if it shows as pending, approved, or rejected.