With RCS Tax engine, it is possible to have several VAT numbers per customer. Pet VAT number, you can have a different Sales tax group.

The calculation is fine.

On line level, the correct Sales tax group is used.

In the tax transactions, also the correct Sales tax group is used.

But the Sales tax group in the header of the order is not updated with the correct one.

I want to have a parameter (and solution) where I can activate:

1)    Only use 1 Sales tax group in Sales order and Purchase order (to prevent errors: more than 1 sales tax group on 1 invoice)

2)    Update the order header (sales and purchase) with which sales tax group is used.

It must be possible to activate or de-activate this option.