DE-R-030
A Peppol Germany national rule (DE-R-*) – applies when the invoice is sent over the Peppol network to a receiver in Germany.
What this error means
DE-R-030
When both seller and buyer are located in Germany and direct debit (BG-19) is used, the bank assigned creditor identifier (BT-90) must be provided.
How to fix it
Provide the SEPA creditor identifier (BT-90) in the payee identification.