The “XML Message for SEPA Direct Debit Initiation – Core and Business-to-Business” (Technical specification / implementation guidelines, ABBL, November 2021) defines Luxembourg implementation rules for ISO 20022 pain.008 messages. It provides detailed guidance on message structure, mandatory and optional data elements, mandate information, and processing rules to ensure compliant, standardised, and automated SEPA direct debit initiation for both Core and B2B schemes.
