Revenue contract not created for converted Subscription for Usage based charges

We are in the process of importing usage-based subscription products from a third-party. This involves leveraging predefined import data tables.

While the creation of usage data, calculation of usage charges, and determination of billing amounts are successfully managed within the subscription system,

we are encountering an issue during the execution of the "Send Subscription Data to Revenue Management" process.

Regrettably, the data is not being effectively interfaced with the Revenue Management system as expected.

No usage-based subscription is interfaced in below interface table or RMCS tables.

select * from OSS_RMCS_DOC_T where document_number = '<Subscription Number 1>' order by creation_date desc