The word "amend" has a special and very specific meaning in relation to tax returns. It does not mean making changes or adjustments to your entries. It means filing a special type of tax return to make changes to a return that was already filed, accepted, and processed by the IRS. If your e-file was rejected because the 2020 AGI was wrong, you do not amend it. You have nothing to amend because the original tax return has not been filed. You just correct the AGI and resubmit the tax return. That's not amending.
