BR-CO-20 - Invoice line period needs a date
If an invoice line period (BG-26) is used, the line period start date (BT-134) or the line period end date (BT-135) — or both — must be present.
BR-CO-20 - Invoice line period needs a date
If an invoice line period (BG-26) is used, the line period start date (BT-134) or the line period end date (BT-135) — or both — must be present.
What this rule checks
If an invoice line period (BG-26) is used, the line period start date (BT-134) or the line period end date (BT-135) — or both — must be present.
How to fix it
Add BT-134 and/or BT-135 to the invoice line period group.
Validate against this rule
This rule is part of EN 16931. Check your invoice with the validator that matches your format:
Related rules
Source: CEN EN 16931 Schematron · Last verified: 2026-07-10
All validation rules