SAP Message 8B150 - Tax situation missing in line &

Diagnosis
ICMS and / or IPI law are missig in the Nota Fiscal item. These aremandatory fields if the item is ICMS or IPI relevant.
Related to the missing law the tax situation code is not filled in theNota Fiscal item.

System Response
It is not possible to continue.

Procedure
Please enter the missing informations. Note that the tax situation isdetermined via the tax law and cannot be entered manually. Please makesure that the tax laws (ICMS and IPI) have been entered for the item.