Please we need help - CALC_TAX_DURING_IMPORT_FLAG to 'N' - Invoices Created through the interface

 Hi,

We are doing the data migration for suppliers and ap transactions.

Suppliers - We are setting up in the Tax and Reporting Option the value Calculate Tax as 'Null' or 'Yes'

AP Transactions - We are populating in the interface the  CALC_TAX_DURING_IMPORT_FLAG to 'N' , and sending manual tax lines to create the invoice.

The invoices are created as expected but when we run the 'Invoice Validation' process another tax line is calculated by the ebtax engine.

- How we can avoid this problem to occur? As we were updating the  CALC_TAX_DURING_IMPORT_FLAG to 'N' we assumme that the system shouldn't be calculating the tax lines automatically.....