I did some more investigation and now believe that we don't need to reply that our drones are RID Compliant ..... yet. Since it doesn't start until September 2023 we can just answer no to the question.
It isn't the same as your drone serial number. When you hover over the space to enter the RID serial number, you will see the message on the photo I attached. I also contacted Autel and am waiting for a response.