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Reference Types

TypeFull NameStandardFormatUse Cases
SCORStructured Creditor ReferenceISO 11649RF + check digits + referenceInternational payments, invoices, creditor references
QRRQR ReferenceSwiss QR-Bill27 digits with check digitSwiss QR-bill payments, domestic Swiss transactions
ISRIn-payment Slip with ReferenceSwiss ESR/ISR27 digits (orange slip)Traditional Swiss payment slips, ESR references
IREFInternal ReferenceProprietaryCompany-specific formatInternal tracking, custom reference systems
EREFEnd-to-End ReferenceSEPA standardMax 35 chars alphanumericSEPA transfers, European payments, transaction tracking
PREFPayment ReferenceGenericVaries by institutionPurchase orders, invoice numbers, payment IDs
MREFMandate ReferenceSEPA Direct DebitMax 35 chars alphanumericDirect debit mandates, recurring payments
CREDCreditor ReferenceISO 11649 variantStructured formatInvoice references, accounts receivable
USTDUnstructuredFree textMax 140 charsGeneral notes, unstructured payment information
NONNone/Not ApplicableN/ANo referencePayments without specific reference requirements
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