The EPP code is a security code also called an authorization or auth code.
The main work of the EPP code is to protect the domain while doing the domain transfer from one register to another.
To initiate the transfer process, the domain owner provides the EPP code to the new registrar during the domain transfer request.
The new registrar then communicates with the current registrar using the EPP code to confirm the domain transfer.
This authorization process ensures that the domain remains under the rightful owner's control and prevents unauthorized transfers.
It adds an extra layer of security to the domain transfer process, protecting the domain owner's interests and minimizing the risk of domain hijacking or theft.
The authorization code is unique for each domain name and is assigned by the registrar at the time the domain name is registered.