EPP Code 2304 is caused when an update is performed on a domain which currently has a pending event. Such events can be linked to a pending contact update after a domain is transferred to a new registrar, transferred to a new domain reseller or an update on the contact / registrant information.
Below is a sample of the email notification informing you of an EPP Error 2304
This email is to inform you that the domain cleanup for domainname.co.za has failed.
Please refer to error code and message below and rectify where possible.
EPP Code: 2304
EPP Message: Domain status 'pendingUpdate' prohibits operation