BAPI_ACC_DOCUMENT_POST and non-deductible input tax

Dear forum,

I created a program that uses the bapi u201CBAPI_ACC_DOCUMENT_POSTu201D in order to post FI documents that in another way are posted through transaction FB60.

The problem is that if the tax code is non-deductible the fields u201CBSEG- TXBHWu201D and u201CBSEG- TXBFWu201D are not updated, although these fields are updated through FB60.

How can I update these fields?

Thanks in advance!