Billing data lines imported from Fusion Receivables are stuck in 'Not Processed' Status

Summary

uploaded a AR transaction in Fusion Receivables. Extracted The Revenue Contract data and created Contracts in RMCS for the Receivables transaction. Failed when tried to import billing data for contrac

Content

Facing this issue when trying to complete the flow in RMCS importing data from Receivables. Not sure if I am missing a setup or if this is a issue on the system. Have completed setups to setup Fusion receivables as a source and set AR Transaction source for extraction. In AR uploaded a transaction which was processed and accounted in AR and posted in ledger.

Now in RMCS Ran the Program to extract Revenue basis data from Receivables. Ran 'Validate Contract Source Data' and then 'Identify Customer  Contracts' to have the accounting contracts created in RMCS. Accounting Contracts are frozen and reviewed.  Ran the request to Import billing data from Fusion Receivables. I see the data was extracted successfully. and see the rows in table VRM_Billing_line_details table with the Billing_data_processed_status value is 'Not Processed'