Service Confirmation not appearing in Billing Due Lists, not in release for billing documents

Hi all,

I have created the service order and Service Confirmation with the below details:

1. Created the SRVO service order and added the Product ID, Org details information and Released  the status.
2. Created the follow up transaction SRVC Confirmation and Completed the status.
3. Again in the SRVO service order changed the Status from released to completed.
4. Searched the both Order and Confirmation transaction ID’s in the “Release for Billing”. But I am not able to find any document in the release for billing result list.

Customization’s done:

1. Used the Billing relevance as “D: Transaction-Related Billing after completion for item categories" in service confirmation item category SVCP.
2. Intercompany billing as external.
3. Assigned the Item categories to Billing item category SCN( Source: SRVO and SRVC).

Kindly look at all the details mentioned above and guide me if i have missed any customizations, to get the documents in the release for billing list.

Thanks and regards,

kavita chaudhary