I am working on a soa integration to ammend a leave in hr_api_transactions. When the transaction is

I am working on a soa integration to ammend a leave in hr_api_transactions. When the transaction is amended from the application, I see that a new entry is created for that transaction in hr_api_transactions. How do I achieve this. The current apis hr_transaction_api.update_transaction and hr_transaction_api.Update_transaction_step is updaing the current transaction and not creating a new entry.