After you file

I have to file an amended return due to new 1099; however, I will owe in either case. I received notification from TurboTax that my federal return was accepted by the IRS. In the email it says this means "[I'm] officially finished filing [my] federal taxes..."  Your response said to not submit the amended until my original has been fully processed.

 

Am I able to file my amended return now, or do I wait until the original payment transaction goes through to file?