---
type: "Regulation"
title: "Harmonised ISO 20022 Data Requirements for Enhancing Cross-Border Payments, Updated Report"
regulation_slug: "CPMI-ISO-20022-HARMONISATION-UPDATED-2026"
regulation_id: "320327"
regulator_short_code: "BIS-CPMI"
body_id: "BIS-CPMI-INT-001"
jurisdiction_code: "INT"
j_level: "J1"
topic: null
publication_date: null
last_amended_date: null
substrate_version: 1
audit_status: "research_complete"
active_findings_count: 5
whitepapers_count: 2
license: "CC-BY-4.0"
timestamp: "2026-06-16T00:00:00+00:00"
---

# Harmonised ISO 20022 Data Requirements for Enhancing Cross-Border Payments, Updated Report

- **Slug.** `CPMI-ISO-20022-HARMONISATION-UPDATED-2026`
- **Regulator.** [BIS-CPMI — Bank for International Settlements — Committee on Payments and Market Infrastructures (CPMI)](/okf/bodies/BIS-CPMI-INT-001.md)
- **Jurisdiction.** INT
- **J-level.** J1

## Active findings (5)

- [`RLB-H-INT-BIS-CPMI-ISO-20022-HARMONISATION-UPDATED-2026-Q006-Sonnet46`](/okf/findings/INT-BIS-CPMI-INT-001-CPMI-ISO-20022-HARMONISATION-UPDATED-2026-v1-006--sonnet-46-websearch.md) — inference_drift — Claude Sonnet 4.6 (web search on)
- [`RLB-H-INT-BIS-CPMI-ISO-20022-HARMONISATION-UPDATED-2026-Q010-Opus47`](/okf/findings/INT-BIS-CPMI-INT-001-CPMI-ISO-20022-HARMONISATION-UPDATED-2026-v1-010--opus-47-websearch.md) — inference_drift — Claude Opus 4.7 (web search on)
- [`RLB-H-INT-BIS-CPMI-ISO-20022-HARMONISATION-UPDATED-2026-Q006-Opus47`](/okf/findings/INT-BIS-CPMI-INT-001-CPMI-ISO-20022-HARMONISATION-UPDATED-2026-v1-006--opus-47-websearch.md) — inference_drift — Claude Opus 4.7 (web search on)
- [`RLB-H-INT-BIS-CPMI-ISO-20022-HARMONISATION-UPDATED-2026-Q007-Sonnet46`](/okf/findings/INT-BIS-CPMI-INT-001-CPMI-ISO-20022-HARMONISATION-UPDATED-2026-v1-007--sonnet-46-websearch.md) — inference_drift — Claude Sonnet 4.6 (web search on)
- [`RLB-H-INT-BIS-CPMI-ISO-20022-HARMONISATION-UPDATED-2026-Q004-Sonnet46`](/okf/findings/INT-BIS-CPMI-INT-001-CPMI-ISO-20022-HARMONISATION-UPDATED-2026-v1-004--sonnet-46-websearch.md) — misattributed — Claude Sonnet 4.6 (web search on)

## AI Labs whitepapers (2)

- [`cpmi-iso-20022-harmonisation-updated-2026-ai-labs`](/okf/whitepapers/cpmi-iso-20022-harmonisation-updated-2026-ai-labs.md) — ISO 20022 Harmonisation: Numeric Conflation and Attribution Failures in Cross-Border Payment Regulation
- [`CPMI-ISO-20022-HARMONISATION-UPDATED-2026-general-v1`](/okf/whitepapers/CPMI-ISO-20022-HARMONISATION-UPDATED-2026-general-v1.md) — Hallucination findings: Harmonised ISO 20022 Data Requirements for Enhancing Cross-Border Payments - Updated Report

## Related concepts

- [All regulations](/okf/regulations/index.md)
- [Regulator: BIS-CPMI-INT-001](/okf/bodies/BIS-CPMI-INT-001.md)
- [Methodology](/okf/methodology.md)