MPRN/Site Address change requests are sent by suppliers to ESBN via the 013 message. Each site address change is outsorted and reviewed by a member of the Networks Database team. Some change requests involve lengthy investigations before a decision is made as to whether to change the site address or not.
If the address change proposed is accepted a 114 is sent indicating this. If ESBN decides that the requested address change is not appropriate, a 014R message is sent with a rejection reason IID.
ESBN are responsible for the site or MPRN address whereas the Supplier determines the notification or general communication address.
Please see Appendix 1 for existing list of Rejection Reasons

Click here to read the document.