Can't E-file amended California return

[naviator2003]

The Franchise Tax Board of California states on their website:

https://www.ftb.ca.gov/file/after-you-file/amend-a-return/index.html

Submit your amended return online or by mail: Online - Through your tax representative or tax preparation software

However, Turbotax will only allow me to file my amended return by mail. Why?

[rramirx]

Following.. Same question I have.

[JeffreyR77]

TurboTax does not support eFile of amended California returns currently,

California Form Availability in TurboTax