Transfer Secret or Transfer Auth Code or EPP Auth Code or Domain Secret is a code of about 6-16 characters used to prevent theft of your domain from malicious people. The above code can be viewed from the domain management system. (your original domain provider) or some service providers you need to send email from Administrative Contact to the service provider to request the code.
The Auth Code will be used in your domain transfer registration process. To the system of Dataton Dot Net, if the code is wrong, it will not be able to send an approval request (Approve Transfer) to the Admintrative Contact.
Auth Code may be called by many names. according to the service provider as the following common names:
"Transfer Auth Code" = "Transfer Secret" = "EPP Auth Code" = "Domain Secret" = "Auth-Code"