In Manual Transactions in AR(Receivables) and in sale order in OM(Order Management); Is not Calcula

  The exercise its en release R12 and localizations colombia.

1. In the creation the one manual transaction in AR,  the system is bringing the group tax, but is not  calculate the tax this transaction; the IVA and the ITSW.

The setup of the localizations colombia  already completed.

2.in the creation the one sales order in order management, the system read or bring the group tax and puts it in the respective field, but in the field "Tax Amount" value placed 0.00.

Additionally or so earlier, tax data do not reach the interface AR.

please help indicators or guides, may be the problem, in  these two cases.