Incorrect material tax classification in invoice

[sapnaive]

Dear all,

We have a sales order xxxxx in production system. xxxxx has 2
line items with the same material number and both items are with
billing plan.

And each item in the sales order has its own billing and each billing
has 2 items, one with the normal description and another one with the
description as "downpayment settlement" but both with the same material
number.

The material tax classification value for this material is 1 but not
sure why the material tax classification in the invoice yyyyyyyy (for
downpayment settlement item) for the sales order 2nd item is 0, not
sure why system gives 0 there.

If we try to cancel this billing and create again also it gives 0 there.
Please advise where the 0 comes from.

Thanks.

[Sharpshooter]

Was it changed by the user in the sales order? The invoice does not read the material master - it is copied from the order.

[sapnaive]

Sharpshooter,

Thanks for your respond.

Unfortunately the tax classification in the sales order is 1 and never been changed.

Thanks.