PEPPOL-EN16931-R020
An official OpenPeppol BIS Billing 3.0 rule – checked for invoices sent over the Peppol network on top of the EN 16931 rules.
What this error means
PEPPOL-EN16931-R020
The seller's electronic address (Peppol endpoint, BT-34) is missing.
How to fix it
Add EndpointID with the correct schemeID for the seller's country, e.g. 0200 + company code in Lithuania, 9945 + NIP in Poland, 0218 in Latvia.