What it means
When the seller and the buyer are both in Germany and the invoice has a delivery address (BG-15), that address must include a post code (BT-78). The rule only applies if a delivery address is present. It does not make you give one.
Why it matters
A delivery address without a post code is incomplete, so the recipient cannot tell exactly where the goods or services went. The invoice is rejected.
How to fix it
In your invoicing software, open the delivery address on the invoice or on the customer's record and fill in the post code. Software often adds a delivery address automatically from one saved on the customer, so check there if you did not enter one yourself. If everything went to the buyer's usual address, you can clear the delivery address instead.
The rule as published
Read the rule on the publisher's site
Business terms: BG-15, BT-78
Where this rule applies
| Rule set | Version |
|---|---|
| Peppol BIS Billing 3.0 (invoice) | 2026.5 |
| Peppol BIS Billing 3.0 (credit note) | 2026.5 |
Check your file
Drop your e-invoice to see whether DE-R-011 still fails, and which other rules do.