Tax Details are not Populating in the Requisition in Oracle EBS R12

Hi All ,

I required some urgent help on this . When the User is Trying to raise a Requisition in iProcurement then the correct tax detail is not getting fetched from the supplier . For that supplier there are two Sites have been created . One site is Zero Rated and Calculate Tax is 'No' and other one is 20% VAT and Calculate Tax is 'Yes'. But whenever the supplier is raise a Requisition where they required Tax details then the values are not getting populated .

And this Requisition which they are trying to raise its belong to 20% VAT Site in Oracle .

Kindly pls help me to resolve this issue