# Crypto Conversion

AquaPay provides a convenient way to convert the residue amount of Crypto to Fiat in each bill. We provide both UI and API access for the conversion.

On AquaPay web portal, go to "Create Conversion" from the sidebar to start the workflow.

{% hint style="info" %}
Each conversion can only use 1 trading pair. To convert multiple crypto types, please create multiple conversion invoices.
{% endhint %}

![](/files/hMmVn86ym4XfhwAMzSSI)

Each quote is valid for a limited time, usually around 8 seconds and will automatically refresh until executed. A quote can only be executed when it's valid. Balances used in the conversion invoice will be locked and cannot be used for creating another conversion invoice.

![](/files/adRiaS2eiRTpQ14xoLCt)

You can see the conversion invoice history in the sidebar "Conversions" > "History" page. Each conversion item is also shown under the billing record.

![](/files/UxQxBPpjQIZA0OABIgvd)


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