Use the official definitions for both sides of the translation and inspect the original teaching samples before implementing a mapping.
An XSD checks XML structure. A usage guideline adds profile rules, conditional fields, code restrictions, and business controls. XSD-valid does not mean scheme-compliant.
XSD + definitionBase ISO 20022current
ISO 20022 message definitions and XSDs
Choose the exact message definition in the official catalogue. The base XSD checks XML structure; it does not prove compliance with a scheme profile.
Owner
ISO 20022 Registration Authority
Checked
2026-07-12
Access
Official page · Public official catalogue; select the required message version before downloading.
T2 functional specifications, validation rules, and binding XSDs
The ECB release library for T2 RTGS and central-liquidity messaging, including public user specifications, business validation rules, and binding schemas.
Owner
European Central Bank
Version
R2026.JUN
Checked
2026-07-19
Access
Official page · Public ECB release page with owner-hosted specifications and ZIP packages; select the release for the implementation window.
Field correspondence, transformation treatment, and data-loss notes for Single debit advice compared with a structured bank-to-customer debit/credit notification.
Owner
Payments Signal
Checked
2026-07-19
Integrity
crc32:96b16a98
Access
Payments Signal download · Original, source-backed teaching asset; no login required.
Field correspondence, transformation treatment, and data-loss notes for Single credit advice compared with a structured bank-to-customer debit/credit notification.
Owner
Payments Signal
Checked
2026-07-19
Integrity
crc32:baee9a30
Access
Payments Signal download · Original, source-backed teaching asset; no login required.
Positive and negative test cases across validation, rejection, return, recall, reversal, investigation, reconciliation, migration, instant payments, and screening.
Owner
Payments Signal
Checked
2026-07-19
Integrity
crc32:98c48cc7
Access
Payments Signal download · Original, source-backed teaching asset; no login required.
Defines the MT message standards (including MT101, MT103, MT202/202 COV, and the MT9xx statement messages) exchanged over the Swift FIN network, maintained through annual standards releases. · Checked 2026-07-18
Full field-level specifications live in the Swift Knowledge Centre User Handbook behind a swift.com login. Coexistence for in-scope FI-to-FI payment instructions ended on 22 November 2025, but treatment differs by MT: some instructions are NAKed and selected messages can enter temporary, chargeable contingency conversion. Reporting, initiation, investigations and correspondence follow separate roadmaps.
Defines the current versions of all ISO 20022 message definitions, including the pain, pacs, and camt messages taught on this site. · Checked 2026-07-12
Each message set is described by a Message Definition Report; earlier versions remain available in the ISO 20022 messages archive.
Simplified educational illustration
Payments Signal editorial teaching models — Payments Signal
This site's own simplified teaching models. · Checked 2026-07-12
What this simplifies: Common correspondences only.
Used wherever diagrams, scenarios, figures, or example values are didactic constructions rather than sourced facts; every such use carries a simplifications disclosure. All people, companies, banks, and list entries in examples are fictional.
COMMUNITY SIGNAL
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NEXT QUESTION REVIEWMonday, 27 Jul, 8:00 amMonday answer runs use source-supported educational material. Some questions may need owner review.