Regulatory reason
Category: Regulatory R-type: Reject / Return
SCT
Applies
SCT Inst
Applies
SDD Core
Applies
SDD B2B
Applies
Retryable
No — compliance review required
Generated by
Debtor bank, beneficiary bank, or the compliance function in the payment chain.
ISO 20022 definition
Regulatory Reason.
Typical cause
Sanctions screening hit, AML block, or another regulatory hold on either side of the transaction — the reason is not further specified.
What to do about it
Do not retry without compliance review and escalation. RR04 in particular may reflect a sanctions hit or AML flag — treat as a compliance case, not a retriable technical failure.
Shared across SCT, SCT Inst, and SDD. The least specific of the four RR codes — used as a catch-all where the bank cannot or will not disclose the exact regulatory trigger.
Full reference
SEPA Return and Reject Codes: The R-Transaction Reference