3453617 - Unable to fetch the paid amount in Contract using KUT extension field

KUT extension field with Calculation Rule Payment Amount (PaymentAmount – PaymentControl) not fetching the paid amount from Relevant Invoices. 

SAP Business ByDesign 

1. Go to Sales Orders -> Contracts view
2. Select the contract XXX (XXX represents the contract ID)
3. Edit and click on View All
4. Under General tab the  KUT extension field is not showing any value even though the invoice is Released 

This  Calculation Rule Payment Amount (PaymentAmount – PaymentControl) is designed to fetch the external payment amount. It will only display a value if the Payment Method is set as External Payment. Therefore, it is not possible to retrieve the paid amount from the Payment Allocation for the respective invoices. 

To obtain the paid amount, you will need to refer to financial reports. Unfortunately, it is not feasible to directly fetch the value in the contract.

Zahlungsbetrag; payment allocation;  , KBA , AP-SLO-SO , Sales Order , Problem