You define category mappings for categorizing and mapping source system data to a specific target EPM Scenario dimension member. For example, in a Financial Management application, you may have a Scenario dimension member called “Actuals” for storing actual balances from a source system. In a Planning application, the same source system data is stored using the Scenario dimension member “Current.” In ERP Integrator, you can create one category mapping to give both one name to represent their respective scenarios.