Approach to write-off migrated AR Transactions and unapplied receipts

Hi Team,

Considering the scenario where in from an operating unit in AR (Oracle EBS R12 v12.2.4), business migrates some of the transactions and unapplied receipts belonging to certain category to target ERP. Business then continues to use Oracle EBS R12 AR module for rest of the non-migrated transactions and unapplied receipts.

To avoid duplicate processing of migrated AR transactions and unapplied receipts, what should be write-off approach in Accounts Receivable for migrated AR Transactions and unapplied receipts.

Thanks