the applicable VAT rate is entered on the line items (the VAT amount is therefore calculated, but the TOTAL amount = amount due is only the value of the tax base)
VAT lines are populated according to the posting rule (lines 07-08, 43-44 for goods; for services, lines 12-13, 43-44 must be set manually)
the posting rule must contain a VAT fulfillment code
VAT control statement lines A.2
a prerequisite is that the Supplier is entered in the company address book with the country filled in and the VAT Payer field checked
The text indicating that the transaction is subject to reverse charge is not automatically printed on the invoice. It must be added manually in the Introduction or Conclusion field — either on the given invoice or on the Document Type.