Was your original submission "Accepted" via e-file? If this is the case, you can amend your return.
If your e-file still pending for "Accepted" or "Rejected" acknowledgement by the Governmental Agency. Then, you will have to wait until you receive a notification of the e-file status.
If you return is Rejected, you can go back in, then fix the issue and update any other changes. Then e-file it again.
See helpful information on how to amend your tax return after you have received an "Accepted" notice. https://ttlc.intuit.com/replies/6603004
