I completed my 2022 back taxes on TurboTax desktop. It won't let me submit my New York state forms electronically, but NYS says I have to file electronically. Now what?

[xmasbaby0]

Past year returns cannot be e-filed.

New York prefers e-filed returns, but there are certain circumstances that make it necessary for you to file your NY return by mail and the state DOES allow mailed returns.    If you could not or did not e-file your federal return then your NY return cannot be e-filed.   It has to be mailed.   It is not possible to e-file any state return if the federal return was not e-filed and accepted by the IRS.

https://www.tax.ny.gov/pit/efile/efile_mandate_for_individuals.htm

https://www.tax.ny.gov/pit/file/return_assembly_mail.htm

[DoninGA]

If the software you are using does not support e-filing of the New York state income tax return, the state allows the tax return to be mailed.