In the e-documents module with outgoing PEPPOL BIS 3.0 Invoice the BuyerReference (https://docs.peppol.eu/poacc/billing/3.0/syntax/ubl-invoice/cbc-BuyerReference/) comes from Your Reference in the Sales Header/Sales Invoice Header. It would be nice if you could also use a fixed BuyerReference value from the customer card, because e.g. in the German XRechnung implementation why adds rules to PEPPOL invoice it is used for internal routing purposes like Leitweg-ID (https://de.wikipedia.org/wiki/Leitweg-ID).

Yammer: https://www.yammer.com/dynamicsnavdev/#/Threads/show?threadId=2711223094558720