Service Tax credit in SAP B1

As per new rules from Govt (India), companies can now avail credit on Service Tax at the time of booking an AP invoice. However, to the best of our knowledge SAP B1 (upto version 8.81) does not have this functionality. It expects an outgoing payment to be made before it can show the credit in the Tax Payment Wizard. We request experts to advise on how to handle the scenario of availing credit on Service Tax based on AP invoice booked.