How to populate SERVICE TAX in JA Tables (India Localization) during the interface of Invoices from

 When the invoices are getting imported from an external stystem and created through Autoinvoice Import program in Oracle Applications, they are all getting created without any India localization info. I.e., there is no data seen in JA_IN_RA_CUSTOMER_TRX_LINES. Information is flowing verymuch into RA_CUSTOMER_TRX and RA_CUSTOMER_TRX_LINES. But it is not getting passed to JA_IN_RA_CUST_TRX_TAX_LINES.

a) Is this a normal functionality?

b) If yes, How to get the data populated in the JA tables.

We appreciate your help on this, as we are in the end of our implementation phase.