Autoinvoice calculates the wrong tax

 Am also logginf an SR on this but was hoping that someone else may ahve experience the same issue and can point me in the right direction.

We have a tax solution that correctly calcualtes the tax when entered in OM and also when you use the exact same data but create the AR transaction manually. However, when we import the said OM order into AR, it calcualtes a compeltely differenet tax.

Our determining factor set contains the usual geography factors but it also uses Item classification and party classification and I think it is the party classification that the autoinvocie is blocking.