If you contact Victory customer support at 1 (877) 737-7172, tell them you have an electric back and ask to speak with Kaylene. You probably won't be able to talk with her directly until a case gets opened and she call you back in a few days. She can help you identify who is supposed to be supporting your bike and make sure they know they are supposed to be supporting your bike. After you get a list of all supporting dealers within any reasonable distance from you, talk to ALL of them and make sure they have received training, diagnostic equipment, are willing and able to work on your bike, etc.
The front line support will tell you that your serial number is not in their system, and to take it to any Victory dealer. While this may be the case on a flat, non-rotating plane in a vacuum that because management says dealers can support your bike, therefore they can; back here on round spinning Earth, many if not most dealers are nowhere near able to support you yet.