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SEPA MS03

Not specified — agent-generated

Category: Debtor Refusal & Unspecified R-type: Reject / Return

SCT

N/A

SCT Inst

N/A

SDD Core

Applies

SDD B2B

Applies

Retryable

No, until verified

Generated by

Debtor bank, withholding the underlying reason.

ISO 20022 definition

Reason has not been specified by agent.

Typical cause

The agent has not specified the underlying reason. EPC173-14 v8.1 permits MS03 to substitute for AC04, AM04, MD07 or RR01–RR04 where national law restricts disclosure. The code does not identify which reason was masked or whether a retry is safe.

What to do about it

Pause automated retries, retain the collection reference, and ask the PSP what can be disclosed and remedied. If the customer independently confirms account closure, update the mandate; do not infer closure from MS03 alone.

Rulebook note

The current EPC SDD guidance allows substitution where national law restricts disclosure but does not identify a universal affected-country list or rank the hidden reasons by frequency.

Confidence: high. Sourced from PaymentBrief's SEPA R-transaction reference article, cross-verified against ISO 20022 external code sets and EPC guidance documents. Reason-code applicability and timing windows vary by rulebook version and bank handling — verify against your bank or PSP before acting.

Full reference

SEPA Return and Reject Codes: The R-Transaction Reference

Related codes

MS02

Not specified — customer-generated

SL01

Specific debtor bank service