SAP TRM: Separation of loan principal and interest payments

Hello everyone,
we are presently facing the pursuing situation successful our nationalist unreality system. 

Problem:
Currently, SAP TRM tin lone station to 1 account. When the relationship "Liabilities to Affiliated Companies" is utilized for payments, the involvement income is besides posted to this relationship alternatively of to "Receivables from Affiliated Companies." It is not imaginable to differentiate betwixt outgo liabilities (loans) and receivables (interest).

Current Workaround:
Manual rebooking of liabilities to receivables.

Desired Solution:

1. Enable differentiation betwixt indebtedness main and involvement payments.
2. Post the indebtedness main to the relationship "Liabilities to Affiliated Companies."
3. Post involvement payments to "Receivables from Affiliated Companies."

This would destruct the request for manual rebooking.

Process description:
First, we make a indebtedness utilizing the transaction "Create IR Instrument (TM_51)" with the Product Type "55I-Interest Rate Instrument - INT" and the Transaction Type "100-Invest." The Flow Type "1100-Principal Increase" and Condition Type "1200-Nominal Interest" are selected nether the Interest Structure. The Condition Type "1120-Final Repayment" is utilized nether the Repayment Structure.

In the adjacent step, we usage the transaction "Fix, Pay and Post Flows - TBB1" to station the loan.

Questions:

Is determination immoderate mode we tin get the desired result, which is simply a separation betwixt the indebtedness main posting and the involvement payments, without further manual postings? Can we trigger 2 abstracted postings from TBB1? Is determination immoderate customizing that would let america to bash this?

Thank you for your support.

Best regards,

Tobias

SAP S/4HANA Cloud Public Edition