About the Intercompany dimension
The Intercompany dimension is a system-maintained dimension that contains copies of entities that are involved in intercompany transactions with other entities in the system. A member from the Entity dimension is automatically copied into this dimension if the Intercompany property is set to TRUE in the Entity dimension. Similarly, a member from the Entity dimension is removed if the Intercompany property is set to FALSE.
You cannot add members or modify member attributes in the Intercompany dimension. Planning Business Modeler makes changes to the Intercompany dimension when you make associated changes to the Entity dimension.