The paper discusses a business case when customer’s deployment of the Enterprise Resource Planning solution (ERP) is integrated with third-party's software. Customer’s change management highly depends on vendor's information about changes between ERP versions. The problem is that the vendor cannot predict the impact of implemented changes on every customer’s business. In the suggested conceptual customer-oriented solution, the conjoint assessment evaluates the size, the scope and the essentiality of ERP changes in order to provide data on changes for a particular customer. The resulting difference model could be enhanced with results of analysis of collected access statistics for customer’s ERP packages. The solution uses a unified data format for data interchange. The final model of ERP changes and their essentiality for a particular customer could be visualized for the further application.