I accessed my 2018 returns after it had an accepted status but I did not make any changes. What should I do

[VinceG]

If you accessed your return to review it that is fine. There should be no issues if changes were not made

[DawnC0]

If you started an amendment, here is how to cancel it.  If you didn't make any changes, you don't need to file it.  https://ttlc.intuit.com/replies/4170678