- What is ISO 20022? ISO 20022 is an ISO standard for electronic data interchange between financial institutions. It describes a metadata repository containing descriptions of messages and business processes, and a maintenance process for the repository content.
- For each ISO 20022 message, there is a word document that provides background, explanation and examples, and this corresponds to a spreadsheet that provides the detailed data mapping between the ISO 20022 messages and the corresponding ACH transactions. 20022 Example Zip File With All.
- ISO 20022 messages can also bring more clarity to E&I inquiries. One example of this is the information provided in the Cancellation Reason Code field of ISO 20022 payment cancellation request messages (camt.055 and camt.056). The sender can input one of multiple code options in this field to provide greater detail on the reason for the.
ISO 20022 Business Areas The ISO 20022 standard covers 20 business areas with more than 400 messages. Each area is identified by a four letter area code, e.g. Payment initiation (PAIN), security settlement (SESE), account management (ACMT) etc. ISO 20022 messages are available for the complete payment chain. The ISO 20022 standard supports financial messaging and uses extensible markup language (XML) syntax. ISO 20022 messages use a common data dictionary, can carry a considerable amount of information, and can support payment messages from end to end, including the following: Payment initiation (corporate to bank) Interbank settlement (bank to bank).
Iso 20022 Example Xml
Nacha's ISO 20022-to-ACH Mapping Guide & Tool enables financial institutions to support businesses that leverage ISO 20022 by providing standardized guidance to facilitate translation of ISO 20022 pain.001 (credit) and pain.008 (debit) messages into ACH transactions, and by providing standardized guidance for translating ACH reject/return messages to corresponding ISO 20022 payment status and treasury reporting messages (pain.002 and camt.053).
About ISO 20022 and NACHA’s ISO 20022 Mapping Guide & Tool
ISO 20022, which was developed by the International Organization for Standardization (ISO), is the global messaging standard for financial business transactions, including payments. Today, many multinational companies are utilizing this standard as part of their accounts payable, accounts receivable and treasury functions. In order to facilitate the integration of ISO 20022 payment messages, Nacha has developed an ISO 20022-to-ACH Mapping Guide & Tool to assist financial institutions in translating ISO 20022 instructions for their corporate customers into ACH transactions.
How it Works
Utilizing the ISO 20022-to-ACH Mapping Guide & Tool, financial institutions can receive an ISO 20022 pain.001 or pain.008 message and translate the messages to corresponding ACH Network business and consumer transactions, including CCD, CTX, PPD, IAT and Same Day ACH. The ISO 20022-to-ACH Mapping Guide & Tool also facilitates the translation of ACH return/reject transactions to corresponding pain.002 and camt.053 messages to support clients that wish to receive ISO 20022 messages for these use cases. As part of its ISO 20022 integration strategy for the ACH Network, Nacha will continue to explore options to extend its mapping guidance to address additional industry needs to help bring the benefit of consistency to all organizations and payments.
What’s In It For You
Nacha’s ISO 20022-to-ACH Mapping Guide & Tool provides a standardized way for financial institutions to translate ISO 20022 messages, creating consistency and standard processes, which ultimately enhance and improve operational processes, and certainty.
By utilizing Nacha’s ISO 20022-to-ACH Mapping Guide & Tool, financial institutions can also better support the needs of its corporate customers that use ISO 20022 to execute ACH payments. Use of the Mapping Guide & Tool enables corporations to streamline their own processes, enhance efficiencies and reduce overhead, resulting in cost savings.
Additionally, use of Nacha’s ISO 20022-to-ACH Mapping Guide & Tool serves as a means to generate greater support and adoption of ISO 20022 in the U.S., enabling financial institutions to help align the U.S. payments infrastructure with that of the global community.
Download the ISO 20022-to-ACH Mapping Guide & Tool
The ISO 20022-to-ACH Mapping Guide & Tool is comprised of eight documents. For each ISO 20022 message, there is a word document that provides background, explanation and examples, and this corresponds to a spreadsheet that provides the detailed data mapping between the ISO 20022 messages and the corresponding ACH transactions. You can download individual documents, or you can download a zip file with all eight documents.
Download
Validate the Mapping of ISO 20022 Payment Instructions
Developed in collaboration with Volante Technologies, Nacha's ISO Validator Tool validates the mapping of ISO 20022 payment instructions into ACH files, and ensures compliance with the data formats detailed in Nacha's ISO 20022-to-ACH Mapping Guide. The tool enables businesses, software and solution providers and financial institutions to instantly validate the translated files, correct errors and download amended files.
Validate Files
DISCLAIMER: Articles are written to reflect the interests and views of the author(s), and are not intended as an official Payments Canada statement or position. Furthermore, all commentary will be moderated and reviewed before posting and will be subject to standard community rules and guidelines.
Summary1
ISO 20022 is the culmination of years of effort around the world to get everyone talking the same language in financial services regardless of their jurisdiction or local specialties.
In this thought piece, we provide a look at some of the issues that integrators are having with the real-world implementations of ISO 20022-based interfaces and suggest how the industry can work together to solve them. We’ve reached a cross-road where the pace of technology outstrips the pace of standards development, and we need a model that will help the industry move forward with the technology implementations and not need to rely on the standards bodies within ISO to spend years creating message formats that are obsolete by the time they are published. Technical implementations of the standard for things like APIs need the flexibility for industry to quickly set messages in new formats if they can be shown to trace back to the ISO published examples.
The big challenge in bringing together the global financial ecosystem is that we use a variety of terms across different financial jurisdictions to reference the same thing and because of this, the thousands of data models embedded in millions of financial systems do not align easily. This was the genesis of the ISO 20022 standard that created a globally standardized set of data terminology2 and definitions. The standard then goes a step further by using those data definitions to describe sets of messages that can be used for moving data between entities in the financial system. This empowers the participants in the financial ecosystem to map their data consistently to this global data definition.
As an example, the ISO 20022 standard defines the term of ‘Debtor’ as a person, company or organization that is initiating a payment. So, for any usage of synonyms like payor, buyer, originator, payment initiator, ordering party buyer, etc. the global reference term is now ‘Debtor’. Now, regardless of the local synonym being used, any jurisdiction can easily understand what a ‘Debtor’ is and how it maps to their own local data model.
The messages defined in ISO 20022 are meant to simply define the set or subset of data items that could be included to complete a specific operation between two financial systems or two different entities within a financial ecosystem. Each jurisdiction can define its own domestic schemas of the data elements that are either required, optional or excluded from these messages. But, so long as you are assembling the required data into a message and those data elements can be correlated back to the ISO 20022 data taxonomy then it can be used successfully in any context.
The important thing to remember here is that these messages are purely transient. All of the systems in the financial industry have been designed to store data - not messages. While the data persists for decades, the messages only persist for seconds. When something like a credit transfer operation needs to be completed between two systems, the debtor assembles and sends a pacs.008 credit transfer message based on the agreed ISO 20022-based schema. That message is received by the creditor and immediately dissolved and dispersed into the internal data models based on its relation to the ISO 20022 data taxonomy per the following diagram:
At its core, ISO 20022 is meant to do just that: let the wide variety of data models across the global industry share data over different payment networks using a common message. ISO has provided the examples of these messages and the data to be included using both ASN.1 and XML schemas. While being bulky and verbose in format, these schemas provide an easy model that humans can read and understand. The problem with these example message schemas is that they cannot be utilized so easily by modern interfaces like APIs that prefer message format schemas based on JSON or other more compact schemas.
Swift Iso 20022 Example
There is no requirement by ISO to utilize the XML message schemas that have been provided as examples for the actual messages to be created, in the actual message exchange between entities. Firstly, XML is not an ISO standard itself. It is a message format created by the W3C3. The same is true of the ASN.1 message schema examples that have been created – this message notation format is maintained by the ITU4. We need to be clear that while these are available message formats – these formats are not standards nor are they considered to be standards by anyone. Secondly, as long as the data contained within the message makes it clear which message it is and the recipient of the message can still extract the data elements and understand how that data maps from the ISO 20022 data dictionary to their internal data model consistently, then it should be considered a valid message format.
The XML and ASN.1 message schemas should provide the industry purely with a reference point for the content of any given message in each set of messages. Domestic and international markets can then freely work together to generate their own message schemas in alternate formats. As long as equivalent message formats whether they are created in JSON, BSON, Protocol Buffers, CDR, Bencode, or any other desired message format can be traced back to the ISO published XML schema example, it can be considered a success.
The industry has already generated several comments on the incompatibility of XML with modern API delivery mechanisms for ISO 20022 interfaces5. It is well known that there is a disconnect between the velocity of technology and the velocity of standards. While ASN.1 and XML-based messages are useless for delivering a high-volume real-time payments rail, the time it will take for the ISO standards body to define, agree to, and publish a third set of message schemas for a format like JSON, the tech industry will have already moved on from JSON to another schema format.
XML gives enough of a human-readable definition for reviewing and agreeing on the Mandatory/Optional/Excluded fields that we should be able to generate more machine-readable formats like JSON or Protocol Buffers schemas without requiring the ISO to have to publish new examples in every format that exists. Otherwise, ISO will get bogged down in generating nothing but message schemas and not progress the ISO 20022 standard. The ISO’s published XML schema can stand as the reference schema and allow the industry to define and agree upon alternate message format schemas as long as there is a published traceability of the data back to the original ISO 20022 data taxonomy. As long as the data content of a given message is consistent between those schemas and the relation between those schemas can be defined and correlated back to the original XML examples, then the solution will be whole.
Author
Iso 20022 Json Example
As a Principal Technology Architect at Payments Canada, Craig is responsible for providing technical expertise and oversight in support of our payments modernization initiatives. His interests include Blockchain DLT, Digital Identity, monetary policy, cryptocurrencies and financial services standards. Prior to joining Payments Canada, Craig worked in the private and public sectors as a senior technical consultant on diverse large-scale systems integration projects.
Iso 20022 Sample Message
1 The views presented in this paper are those of the authors and do not necessarily reflect the views of Payments Canada.
2 ISO 20022 Data Dictionary reference model https://www.iso20022.org/understanding_the_data_dictionary.page
3 World Wide Web Consortium (W3C) XML description https://www.w3.org/standards/xml/core
4 International Telecommunication Union (ITU) ASN.1 message notation https://www.itu.int/en/ITU-T/asn1/Pages/introduction.aspx
5 ACI’s Ramsey: APIs and ISO20022 are completely incompatible https://www.bobsguide.com/guide/news/2019/Apr/4/acis-ramsey-apis-and-iso20022-are-completely-incompatible/