C<$params{is_sales}>) or expense (for falsish values of
C<$params{is_sales}>) account for the current part. It uses the part's
associated buchungsgruppe and uses the fields belonging to the tax
-zone given by C<$params{taxzone}> (range 0..3).
+zone given by C<$params{taxzone}>.
The information retrieved by the function is cached.
the three key words C<income>, C<expense> and C<inventory>.
This function uses the part's associated buchungsgruppe and uses the
-fields belonging to the tax zone given by C<$params{taxzone}> (range
-0..3).
+fields belonging to the tax zone given by C<$params{taxzone}>.
The information retrieved by the function is cached.