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UETR - The Role of Unique End-to-End Transaction References in SWIFT Payments

UETR is a 36-character alphanumeric code that serves as a unique identifier for a specific payment transaction.  Previously Transaction Reference Number was the only identifier for SWIFT cross-border money transfers. However in order to enhance these critical cross-border transactions, Unique End-to-End Transaction References (UETRs) have emerged as a pivotal tool. This article delves into the format, history, and role of UETRs in SWIFT payments, shedding light on their significance in the modern financial ecosystem.

Format of UETR

As I've mentioned in the intro, UETR is a 36-character alphanumeric code that serves as a unique identifier for a specific payment transaction. The format adheres to the ISO 20022 standard, which is widely recognized in the financial industry for facilitating consistent data exchange. The UETR comprises letters and numbers, ensuring that each reference is distinctive and not easily duplicated.

Those 36 characters – made up to 32 hexadecimal characters, shown in  5 parts divided by hyphens/dashes as follows:

Here is a real example of UETR code: de2da6c9-18be-48d4-8053-867ed90a316a. You can see more examples and comparison with SWIFT reference number in our MT103 sample forms.

With UETR code you can track your SWIFT payment in SWIFT GPI Tracker or request beneficiary's bank to identify the current status of transaction. 


Which Message Types Require the UETR – Unique End to End Transaction Reference?

The SWIFT Standard MT Release 2018 requires you to populate (it is currently optional) the UETR in the FIN user header (block 3) for the following MT messages:


History of UETR

The need for a standardized and globally accepted transaction reference became apparent as the volume and complexity of cross-border payments grew. Prior to the widespread adoption of UETRs, transaction tracking often relied on proprietary references assigned by individual banks. This lack of uniformity hindered the seamless flow of information between financial institutions, causing delays, errors, and compliance challenges.

To address these issues, SWIFT introduced UETRs in 2019 as part of its ongoing efforts to enhance the transparency and efficiency of global payments. By providing a standardized reference for each transaction, UETRs enable easy tracking and reconciliation, which are vital components of modern banking operations.


Role of UETR

The primary role of UETRs lies in their ability to uniquely identify and track payment transactions throughout their lifecycle. UETRs accompany payment messages as they travel between financial institutions, making it possible to link related messages and ensure the accuracy of payment data. This traceability contributes to a range of benefits:

Transparency: UETRs enhance transparency by enabling all parties involved in a transaction to monitor its progress. This transparency is particularly valuable for compliance and audit purposes.

Reduced Errors: The standardized nature of UETRs minimizes the likelihood of errors caused by duplicate references or incomplete data. This leads to fewer payment discrepancies and fewer manual interventions.

Efficient Reconciliation: The unique nature of UETRs simplifies reconciliation processes, as transactions can be easily matched and validated across multiple systems and institutions.

Enhanced Fraud Detection: UETRs play a role in fraud detection by helping institutions identify suspicious activities through unusual patterns or inconsistencies in transaction references.



In the world of swift payments, where speed, accuracy, and security are paramount, Unique End-to-End Transaction References (UETRs) have emerged as a crucial tool. These standardized and globally recognized identifiers bring uniformity to transaction tracking, enhancing transparency and efficiency in the global financial ecosystem. As international financial transactions continue to evolve, UETRs stand as a testament to the industry's commitment to innovation and collaboration.

For more information on UETRs and their role in swift payments, you can refer to authoritative sources such as:

By embracing UETRs, the financial industry takes another stride towards a more interconnected, secure, and efficient future for global transactions.

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