If you realize after biometrics and medicals that you forgot to include an affidavit of support, you don't have to restart your application.
What group members advised:- You can raise a webform to submit the missing affidavit of support — this is a normal, accepted way to add documents you missed.
- Doing so does not tamper with your application's credibility. Adding a missing document later is treated as a correction, not a red flag.
- Be mindful that IRCC currently receives a high volume of webforms, so don't expect an instant response — patience is needed even though the fix itself is straightforward.
Takeaway: a missed affidavit of support is fixable through the standard webform process and shouldn't be seen as harming your application.