Hi Rahul,
I would say there are at least a few methods how to load Positions for legacy OTC instruments, depending on their complexity:
- if complexity of your open deals - the ones which starts at some point before the migration date and matures after - is rather low, you can input them as original deals with all parameters - including interest flows - in this way you secure that you have no deviations between your SAP entries and previous system - either you enter them manually or use the existing BAPIs to import the existing OTC transactions automatically. Then, you have to transfer all flows prior to the migration date to the status 'Posted', without actually generating documents in the general ledger - to do this, use a transaction 'TBB1_LC - Flag Flows as Posted';
- if your opens deals are rather complex - lots of nominal changes, like repayments, etc. - it might make sense to enter a deal as from chosen period to generate e.g. expected interest flow - so you define only balance position from certain date. You would still need to use the transaction TBB1_LC to to transfer all flows prior to the migration date to the status 'Posted'.
hope this will help you.
Kind regards,
Renatas