Billing Output condition-Not able to see after saving

Hi,

Can any body could help me out fot this issue?.

1. Created a condition record via TC: VV31 for the key combination Plant/Billing type.

2. Condition record information is flowing while creating a Billing document (VF01) correctly. But the issue is after saving the billing document the condition record alone in the Header->output-> Does not have any data that means system not taking the data after saving the the billing document.

Hence I am not able to trigger any output automatically. Eventhough the system is not storing the condition record information in the Table : NAST. Table NAST is showing blank for the billing document.

Please give your valuable suggesting to get the required output record automatically after saving the billing document.

Thanks & Regards,

Vijay