Apparently, Turbo Tax will not e-file an amended state return if the federal amended return cannot be e-filed. This should be stated in the e-filing module.

[MW66071]

In such cases, the state mailing address should be provided.

[Opus 17]

TurboTax can't e-file any amended returns, even if you live in a state that allows it. Amended returns need to be printed and mailed in. Or, if you live in the state that allows amended returns to be e-filed, you would have to print the return from TurboTax, and transfer the information to your state's online self-filing system. 

[xmasbaby0]

Amended returns cannot ever be e-filed.  Ever.  Amended returns must be printed, signed, and mailed.  When you print out the return, there will be filing and mailing instructions as to where to mail it.

[MW66071]

Thank you.  TurboTax needs to correct the program since it prompts me to e-file an amended state return.