Designing Inter-Entity Transactions Reports
Inter-Entity Transactions includes default reports you may be able to use "as is" or adapt to match your reporting requirements.
Run the Setup reports to review your configuration. For details, IET Setup Reports
If you need to run a consolidated AP Aged Trial Balance across multiple companies, read Consolidated AP Aged TB - Printing
If you need to run a consolidated AR Aged Trial Balance across multiple companies, read Consolidated AR Aged Trial Balance