Methods and systems for backward compatability using a unified stock keeping identifier

Abstract

A system, a machine-readable storage medium storing instructions, and a computer-implemented method are directed to a Migration Engine that provides for installing a unified variant of an application. The Migration Engine determines presence a stock identifier for one of the first variant and the second variant. Upon determining presence of a respective stock identifier, the Migration Engine identifies a player identifier and transmits the respective stock identifier and the player identifier to a game networking system. The Migration Engine receives application state data. The application state data is representative of a current usage by the player of a variant identified by the respective stock identifier. The Migration Engine instantiates an instance of the unified variant to provide functionality of the variant identified by the respective stock identifier, where the instance of the unified variant of the application is initialized with the received application state data.