You can define one global mapping to map various Scenario dimensions to the individual mapping.
The global category mapping lets you define mappings that cross multiple applications. For example, you may have a case where a source category of an actual may map to a target of an actual in the majority of the cases. But you may have a case where you have a target application where the actual may map to current. In this case, it provides the ability to override the global mapping on an application basis.
To define a global category mapping: