ISO 20022 party role. Determines the PostalAddress24 XSD variant:

• __2 variant (ultimate_debtor, ultimate_creditor, initiating_party):
  TownName AND Country are MANDATORY. FULLY_UNSTRUCTURED is NEVER permitted (REG-05).
• __1 variant (debtor, creditor):
  Max 3 AddressLines. FULLY_UNSTRUCTURED is permitted until SR2026 cutover (2026-11-22T02:30:00Z) for INBOUND;
  banned OUTBOUND post-cutover.

Detected or target address format classification.

Target conversion format. auto lets ARS select the best achievable format.

Address line rendering constraints applied during output formatting.

• EPC: 2 lines × 70 chars
• CBPR_PLUS: 3 lines × 35 chars
• MT_LEGACY: 2 lines × 35 chars
• COMPLIANCE: 7 lines × 70 chars

Postal database verification depth.