Hi Friend,
For this you can check the customization done in T-Code : FD32 and T-Code : OVA8 for Risk
category. (Customization done over here).
As per your query and my understanding, the credit limit is also calculating for the Open sales Order
and Open delivery. So it's better to check in the report for the particular customer weather any open
sales order is existing or not through T-Code : FD32 and confirm.
If you had done any changes in any customization then you have to run a program in T-Code :SE38
"REVKRED77" for all customers to avoid any data inconsistency as the update group is being
changed in a LIVE System i. e Production
Hope this will help you to get your solution
Regards,
Kundan