Diagnosis
No tax code was found for material &v1&.

System Response
The tax code will not appear in the assortment list.

Procedure
Check whether the system determines a tax condition in pricedetermination. If it does not, you can see why not in pricedetermination analysis (it may be, for example, that no taxclassification has been maintained for the material).
You should also ensure that the assortment list profile is assigned aPOS condition type group. The condition type for taxmust be added to this group before it can appear in the assortmentlist.