Where to check the customers existing Credit Limit, Credit Exposure, Rules configuration, Utilization breakdown by individual document?
Open App – ‘Maintain Business Partner’

To check the credit situation of a customer, chose app ‘Maintain Business Partner’. Select the role ‘SAP Credit Management’ from the drop down and go to the [Credit Segment Data]. The ‘Credit Exposure’ represents the credit consumed by the customer. It is possible to drill into the breakdown of the credit exposure by selecting the ‘I’ information button:

Here you can even find the exact sales order that the credit value derives from.