Change program/function from a outside namespace

Hello All,

Question, we have a product with a few programs here that were developed on a outside SAP and they just uploaded the request. The programs have their name space, ex: /CONSULING/PROGRAM. Because they are not standard to use enhancements, and not Z to change it, we get the message Namespace /CONSULTING/ does not exist.

Is there another way to change this programs? I've tried enhancement but does not work.

Thanks!

Josesap