Can I modify the CV already sent?

The changes made to your CV after applying will be reflected in the CV sent to the employer if they have not yet viewed it before the date of the modifications. Click on the "Applications" tab. On the displayed page, check the status next to the application you are interested in, whether it has been viewed or not. However, there is a possibility that the employer may not see these changes if they have already viewed, saved, or printed the CV.