how cost center is derived by intercompany balancing rules

Summary: 2 primary balancing segment (PBS) values have different cross-validation rules (CVR) for cost center. This requires intercompany balancing rules to have different values for cost center. How primary segment rules in "Manage Intercompany Balancing Rules" can be used to drive accurate cost center values?

Content (please ensure you mask any confidential information): currently tried different combinations of i/c receivables and i/c payables GL accounts and cannot make it work correctly.

Either both companies have CC1 (cost center 1) or CC2 (cost center 2) or no CC ("00000" as default).

If GL journal has 2 lines:

DR PBS1-CC1-expense

CR PBS2-CC2-accrual