DE-R-T02
PEPPOL BIS Billing 3.0 layer: peppol
Checked against Peppol BIS Billing 3.0 2026.5
If both supplier and customer are located in Germany, BT-124 "External document location" must contain an absolute URL with valid scheme.
Official rule text
If both supplier and customer are located in Germany, BT-124 "External document location" must contain an absolute URL with valid scheme.
Check your invoice against this rule
Paste it into the live demo, or call POST /v1/validate. See the quickstart.