You can fix or enter into your return if you haven't mailed it yet. You need to click on Add a State to let you back in. You are not actually adding a state, it just lets you back in. Then you can enter your payments and you should be able to efile instead of mailing it.
To change from Mail to Efile........
In TurboTax Online, sign in to your account.
Select Tax Home in the left menu.
Scroll down to Your tax returns & documents.
Select 2024, and then select Add a State (you're not actually adding a state, this just gets you back into your return).
https://ttlc.intuit.com/community/e-file/help/how-do-i-change-from-mail-to-e-file-in-turbotax-online...
