> ## Documentation Index
> Fetch the complete documentation index at: https://developers.fireblocks.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Set an AML customer reference ID for an external wallet

> Sets an AML/KYT customer reference ID for the specific external wallet. External Wallet is a whitelisted address of a wallet that belongs to your users/counterparties. Endpoint Permission: Admin, Non-Signing Admin, Signer, Approver, Editor.



## API Specification

The full API specification for this endpoint is available in the [documentation index](https://developers.fireblocks.com/llms.txt).