Different VAT % depending on the BP's country.

Hello!

I'm experiencing problems with assigning different VAT % depending on the business partner's country. The VAT in my country is 20% and I want when I make service orders to other countries, located inside EU, the VAT to be 0%. However, if I create a service order and the sold-to party is from my country, the 20% VAT is added without any problem, but when the sold-to party is from, let's say Germany, the VAT is still 20% and I need it to be 0%. I think the problem might be somewhere in the decision tree I've created earlier, but since I'm relatively new to SAP CRM, I hope you can help me and tell me how to fix it.

Thanks in advance!:)