> For the complete documentation index, see [llms.txt](https://www.mica.wtf/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.mica.wtf/definitions/definitions/tofr/unique-transaction-identifier.md).

# unique transaction identifier

|                  |                                            |
| ---------------- | ------------------------------------------ |
| **Defined term** | unique transaction identifier              |
| **Source**       | ToFR                                       |
| **Reference**    | Article 3, point (12)                      |
| **Status**       | Published                                  |
| **Refresh rule** | Regenerate after source legal-text changes |

## Definition

> 1. '**unique transaction identifier**' means a combination of letters, numbers or symbols determined by the [payment service provider](/definitions/definitions/mica/payment-service-provider.md), in accordance with the protocols of the payment and settlement systems or messaging systems used for the [transfer of funds](/definitions/definitions/tofr/transfer-of-funds.md), or determined by a [crypto-asset service provider](/definitions/definitions/dora/crypto-asset-service-provider.md), which permits the traceability of the transaction back to the [payer](/definitions/definitions/tofr/payer.md) and the [payee](/definitions/definitions/tofr/payee.md) or the traceability of the [transfer of crypto-assets](/definitions/definitions/tofr/transfer-of-crypto-assets.md) back to the [originator](/definitions/definitions/tofr/originator.md) and the [beneficiary](/definitions/definitions/tofr/beneficiary.md);

## Source

[ToFR, Article 3, point (12)](https://www.mica.wtf/tofr/transfer-of-funds-regulation/chapter-i-general-provisions/article-3-definitions).

## Used In ToFR

* [Article 2 — Scope](https://www.mica.wtf/tofr/transfer-of-funds-regulation/chapter-i-general-provisions/article-2-scope)
* [Article 4 — Information accompanying transfers of funds](https://www.mica.wtf/tofr/transfer-of-funds-regulation/chapter-ii-psp-obligations/article-4-information-accompanying-transfers-of-funds)
* [Article 5 — Transfers of funds within the Union](https://www.mica.wtf/tofr/transfer-of-funds-regulation/chapter-ii-psp-obligations/article-5-transfers-of-funds-within-the-union)
* [Article 6 — Transfers of funds to outside the Union](https://www.mica.wtf/tofr/transfer-of-funds-regulation/chapter-ii-psp-obligations/article-6-transfers-of-funds-to-outside-the-union)
* [Article 14 — Information accompanying transfers of crypto-assets](https://www.mica.wtf/tofr/transfer-of-funds-regulation/chapter-iii-casp-obligations/article-14-information-accompanying-transfers-of-crypto-assets)
* [Article 15 — Batch file transfers of crypto-assets](https://www.mica.wtf/tofr/transfer-of-funds-regulation/chapter-iii-casp-obligations/article-15-batch-file-transfers)


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