PO history (invoice verification) has no tax code

What causes this issue?

The purchase order history for purchasing document &V1&, item &V2&, for
invoice verification document &V3&, item &V4&, has no tax code. This is
probably due to a program error.

System Response

The function has been performed. However, any later attempt to carry out
settlement accounting with regard to the condition record will result in
an error, since settlement accounting involving supplier business volume
data without a tax code is not possible.

How to fix this error?

Contact your system administrator.
Check the supplier business volume data. It may be necessary to correct
the data with regard to the missing tax code.

Error message extract from SAP system. Copyright SAP SE.