Best way to handle error and success messages copy texts from back-end?

I have an Android application and right now I am managing error and success messages in strings.xml resource file. Now in case if I want to change these messages I need to make changes in strings.xml file and give an app update in play-store, which is a bit overhead. Instead, I want these messages to be managed from server side (back-end) so that they can be changed without any update. Can anyone please suggest me the best way to achieve this.