> For the complete documentation index, see [llms.txt](https://docs.payments.thalescloud.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.payments.thalescloud.io/home/cloud-tsp-detokenization-api/iso-message-supported.md).

# ISO Message Supported

## List of ISO Messages Supported

### 1100 – Detokenization Request to the Cloud TSP

The remote Host uses this message to request the Cloud TSP to detokenize a message. During processing, the Cloud TSP performs:

* Token domain restriction control checks based on the type of token
* Detokenization

> This message corresponds to the **"Token Authorization Request"** message in the *EMV Payment Tokenisation Specification Technical Framework v2.0*.

### 1110 – Detokenization Request Response from the Cloud TSP

The Cloud TSP uses this message to communicate the result of the detokenization request. It may:

* Communicate that the detokenization has failed
* Communicate the PAN, PAN related data associated to the token, proprietary data and token-related data
* Depending on the type of payment transaction, check chip data in relation with the token

> This message corresponds to the **"PAN Authorization Request"** message in the *EMV Payment Tokenisation Specification Technical Framework v2.0*.

### 1120 – Transaction Advice Communication to the Cloud TSP (Re-tokenization)

The remote Host uses this message to communicate the result of the transaction processing to the Cloud TSP and to request re-tokenization.

The result of transaction processing may be:

* Transaction approved
* Transaction declined
* Transaction previously approved is reversed

During processing, the Cloud TSP performs:

* Check related to the PAN value communicated
* Send notification message to the wallet
* Retokenization
* Depending on the type of payment transaction, check chip data in relation with the token

> This message corresponds to the **"PAN Authorization Response"** message in the *EMV Payment Tokenisation Specification Technical Framework v2.0*.

### 1130 – Transaction Advice Communication Response from the Cloud TSP (Re-tokenization)

The Cloud TSP uses this message to communicate the result of the Transaction Advice communication request. It may:

* Communicate failure to retrieve information related to the associated detokenization request transaction in the Transaction History File managed by the TSP
* Communicate that the retokenization has failed
* Communicate the Token and Token related data associated to the PAN for the current type of transaction and the chip data generated

> This message corresponds to the **"Token Authorization Response"** message in the *EMV Payment Tokenisation Specification Technical Framework v2.0*.


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