I'm having the same problem and am getting the same rejection notice, so I called California's FTB and waited until someone could answer my question.
The FTB said that the rejections are occurring because TURBOTAX DOESN'T YET HAVE A VALID ELECTRONIC TRANSMITTER ID. They said that the ID is in the "testing state", meaning that the company still owes them information or hasn't completed all the necessary steps.
So it seems that the software is enticing us to eFile (which would be a big improvement over prior years), but has jumped the gun and is providing that option before they're actually ready.
Could a TurboTax team member find out when this "testing state" will be resolved so they get the valid Electronic Transmitter ID, so all of us could know when we can eFile? Or, that it just won't be ready this year so we can (reluctantly) use mail.
