Dear UI5 Developers,
in a SAPUI5 application concurrent editing of resources leads to a lost update problem. This means when two users edit the same resource at the same time one of the users will lose his changes. This paper describes how to use ETags within a SAPUI5 application in order to manage this scenario:
http://go.sap.com/docs/download/2016/02/2298249e-607c-0010-82c7-eda71af511fa.pdf
Kind regards,
Matthias