SEPA

SEPA SCT through an indirect participant

An indirect bank sends a SEPA credit-transfer batch through its sponsor, with separate file controls, CSM clearing, sponsor-account settlement and transaction-level exceptions.

Contributor Shubham Mathure18 July 2026

PAYMENTS SIGNAL · REFERENCE CARD

Actors

Asha Traders (payer)customer
Bank Alba (indirect participant)bank
Sponsor Bank (direct participant)bank
SEPA clearing and settlement mechanisminfrastructure
Nordbank (creditor agent)bank

Messages

pain.001
pacs.008

The sequence

#	Step	Route	Kind
1	pain.001 — Asha Traders submits a supplier batch	Asha → Bank Alba	message
2	File + item checks — Bank Alba validates the container and each payment	Bank Alba	internal
3	DR customer — Bank Alba books the accepted customer debit	Bank Alba	posting
4	Sponsored pacs.008 file — Bank Alba sends the interbank batch to its sponsor	Bank Alba → Sponsor	message
5	Envelope + reachability — Sponsor Bank validates the sponsored submission	Sponsor	internal
6	pacs.008 — The sponsor submits under its direct participation	Sponsor → CSM	message
7	Clearing cycle — The CSM validates, routes and calculates obligations	CSM	clearing
8	Settlement — The sponsor's settlement account funds the outgoing batch	Sponsor → Nordbank	settlement
9	Inbound file / pacs.008 — Nordbank receives its input credit file	CSM → Nordbank	message
10	CR beneficiaries — Nordbank credits the valid beneficiary transactions	Nordbank	posting

Exception rails

Rail	Trigger	Where the money ends up	Next action
Whole file rejected before CSM submission	Sponsor Bank recomputes the envelope controls and finds a signature, transaction-count or control-sum mismatch.	Restored to Asha Traders after the pre-submission file rejection. · No transaction reached the CSM and no interbank settlement occurred.	Bank Alba — Bank Alba corrects the envelope or regenerated totals, proves no transaction executed, and resubmits with controlled identifiers.
Valid file misses the sponsor cut-off	The file is valid but arrives after Sponsor Bank's agreed cut-off for the intended clearing cycle.	Held under Bank Alba's accepted-payment process until the next cycle completes. · Delayed to the next eligible clearing and settlement cycle; not yet settled when queued.	Sponsor — Operations monitors the next cycle, reconciles one submission only, and reviews customer and sponsor cut-offs if the delay breaches service expectations.
One transaction returns after file settlement	Nordbank accepts the inbound file but one EUR 8,500.00 transaction names a beneficiary account that is closed.	EUR 34,000.00 remains with four beneficiaries; EUR 8,500.00 returns to Asha Traders through the sponsor relationship. · The original batch settled in full, then one transaction settled back as a separate return.	Nordbank — Asha Traders corrects the closed beneficiary account before creating a new transaction; the four successful payments are not resent.