Reverse charge (AE): exemption reason missing

What does this error mean?

A VAT breakdown of category AE (reverse charge) must contain an exemption reason (BT-120) or code (BT-121) — customarily "Reverse charge".

How to fix it

Add the exemption reason, e.g. the text "Reverse charge" or the VATEX code vatex-eu-ae.

Affected fields

• BT-120 VAT exemption reason text
• BT-121 VAT exemption reason code
• BG-23 VAT breakdown

← All validation rules
Rule source: EN 16931 / XRechnung (KOSIT) or Billhorse check (BH-*).